Collection<T> Collection<T> Collection<T> Collection<T> Class

Definition

Provides the base class for a generic collection.

generic <typename T>
public ref class Collection : System::Collections::Generic::ICollection<T>, System::Collections::Generic::IEnumerable<T>, System::Collections::Generic::IList<T>, System::Collections::Generic::IReadOnlyCollection<T>, System::Collections::Generic::IReadOnlyList<T>, System::Collections::IList
[System.Runtime.InteropServices.ComVisible(false)]
[System.Serializable]
public class Collection<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.Generic.IList<T>, System.Collections.Generic.IReadOnlyCollection<T>, System.Collections.Generic.IReadOnlyList<T>, System.Collections.IList
type Collection<'T> = class
    interface IList<'T>
    interface IList
    interface IReadOnlyList<'T>
    interface ICollection<'T>
    interface seq<'T>
    interface IEnumerable
    interface ICollection
    interface IReadOnlyCollection<'T>
Public Class Collection(Of T)
Implements ICollection(Of T), IEnumerable(Of T), IList, IList(Of T), IReadOnlyCollection(Of T), IReadOnlyList(Of T)

Type Parameters

T

The type of elements in the collection.

Inheritance
Collection<T>Collection<T>Collection<T>Collection<T>
Derived
Attributes
Implements

Examples

This section contains two code examples. The first example demonstrates several properties and methods of the Collection<T> class. The second example shows how to derive a collection class from a constructed type of Collection<T>, and how to override the protected methods of Collection<T> to provide custom behavior.

Example 1

The following code example demonstrates many of the properties and methods of Collection<T>. The code example creates a collection of strings, uses the Add method to add several strings, displays the Count, and lists the strings. The example uses the IndexOf method to find the index of a string and the Contains method to determine whether a string is in the collection. The example inserts a string using the Insert method and retrieves and sets strings using the default Item[Int32] property (the indexer in C#). The example removes strings by string identity using the Remove method and by index using the RemoveAt method. Finally, the Clear method is used to clear all strings from the collection.

using namespace System;
using namespace System::Collections::Generic;
using namespace System::Collections::ObjectModel;

public ref class Demo
{
public:
    static void Main()
    {
        Collection<String^>^ dinosaurs = gcnew Collection<String^>();

        dinosaurs->Add("Psitticosaurus");
        dinosaurs->Add("Caudipteryx");
        dinosaurs->Add("Compsognathus");
        dinosaurs->Add("Muttaburrasaurus");

        Console::WriteLine("{0} dinosaurs:", dinosaurs->Count);
        Display(dinosaurs);

        Console::WriteLine("\nIndexOf(\"Muttaburrasaurus\"): {0}",
            dinosaurs->IndexOf("Muttaburrasaurus"));

        Console::WriteLine("\nContains(\"Caudipteryx\"): {0}",
            dinosaurs->Contains("Caudipteryx"));

        Console::WriteLine("\nInsert(2, \"Nanotyrannus\")");
        dinosaurs->Insert(2, "Nanotyrannus");
        Display(dinosaurs);

        Console::WriteLine("\ndinosaurs[2]: {0}", dinosaurs[2]);

        Console::WriteLine("\ndinosaurs[2] = \"Microraptor\"");
        dinosaurs[2] = "Microraptor";
        Display(dinosaurs);

        Console::WriteLine("\nRemove(\"Microraptor\")");
        dinosaurs->Remove("Microraptor");
        Display(dinosaurs);

        Console::WriteLine("\nRemoveAt(0)");
        dinosaurs->RemoveAt(0);
        Display(dinosaurs);

        Console::WriteLine("\ndinosaurs.Clear()");
        dinosaurs->Clear();
        Console::WriteLine("Count: {0}", dinosaurs->Count);
    }

private:
    static void Display(Collection<String^>^ cs)
    {
        Console::WriteLine();
        for each( String^ item in cs )
        {
            Console::WriteLine(item);
        }
    }
};

int main()
{
    Demo::Main();
}

/* This code example produces the following output:

4 dinosaurs:

Psitticosaurus
Caudipteryx
Compsognathus
Muttaburrasaurus

IndexOf("Muttaburrasaurus"): 3

Contains("Caudipteryx"): True

Insert(2, "Nanotyrannus")

Psitticosaurus
Caudipteryx
Nanotyrannus
Compsognathus
Muttaburrasaurus

dinosaurs[2]: Nanotyrannus

dinosaurs[2] = "Microraptor"

Psitticosaurus
Caudipteryx
Microraptor
Compsognathus
Muttaburrasaurus

Remove("Microraptor")

Psitticosaurus
Caudipteryx
Compsognathus
Muttaburrasaurus

RemoveAt(0)

Caudipteryx
Compsognathus
Muttaburrasaurus

dinosaurs.Clear()
Count: 0
 */
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;

public class Demo
{
    public static void Main()
    {
        Collection<string> dinosaurs = new Collection<string>();

        dinosaurs.Add("Psitticosaurus");
        dinosaurs.Add("Caudipteryx");
        dinosaurs.Add("Compsognathus");
        dinosaurs.Add("Muttaburrasaurus");

        Console.WriteLine("{0} dinosaurs:", dinosaurs.Count);
        Display(dinosaurs);
    
        Console.WriteLine("\nIndexOf(\"Muttaburrasaurus\"): {0}", 
            dinosaurs.IndexOf("Muttaburrasaurus"));

        Console.WriteLine("\nContains(\"Caudipteryx\"): {0}", 
            dinosaurs.Contains("Caudipteryx"));

        Console.WriteLine("\nInsert(2, \"Nanotyrannus\")");
        dinosaurs.Insert(2, "Nanotyrannus");
        Display(dinosaurs);

        Console.WriteLine("\ndinosaurs[2]: {0}", dinosaurs[2]);

        Console.WriteLine("\ndinosaurs[2] = \"Microraptor\"");
        dinosaurs[2] = "Microraptor";
        Display(dinosaurs);

        Console.WriteLine("\nRemove(\"Microraptor\")");
        dinosaurs.Remove("Microraptor");
        Display(dinosaurs);

        Console.WriteLine("\nRemoveAt(0)");
        dinosaurs.RemoveAt(0);
        Display(dinosaurs);

        Console.WriteLine("\ndinosaurs.Clear()");
        dinosaurs.Clear();
        Console.WriteLine("Count: {0}", dinosaurs.Count);
    }
    
    private static void Display(Collection<string> cs)
    {
        Console.WriteLine();
        foreach( string item in cs )
        {
            Console.WriteLine(item);
        }
    }
}

/* This code example produces the following output:

4 dinosaurs:

Psitticosaurus
Caudipteryx
Compsognathus
Muttaburrasaurus

IndexOf("Muttaburrasaurus"): 3

Contains("Caudipteryx"): True

Insert(2, "Nanotyrannus")

Psitticosaurus
Caudipteryx
Nanotyrannus
Compsognathus
Muttaburrasaurus

dinosaurs[2]: Nanotyrannus

dinosaurs[2] = "Microraptor"

Psitticosaurus
Caudipteryx
Microraptor
Compsognathus
Muttaburrasaurus

Remove("Microraptor")

Psitticosaurus
Caudipteryx
Compsognathus
Muttaburrasaurus

RemoveAt(0)

Caudipteryx
Compsognathus
Muttaburrasaurus

dinosaurs.Clear()
Count: 0
 */
Imports System
Imports System.Collections.Generic
Imports System.Collections.ObjectModel

Public Class Demo
    
    Public Shared Sub Main() 

        Dim dinosaurs As New Collection(Of String)

        dinosaurs.Add("Psitticosaurus")
        dinosaurs.Add("Caudipteryx")
        dinosaurs.Add("Compsognathus")
        dinosaurs.Add("Muttaburrasaurus")

        Console.WriteLine("{0} dinosaurs:", dinosaurs.Count)
        Display(dinosaurs)
    
        Console.WriteLine(vbLf & "IndexOf(""Muttaburrasaurus""): {0}", _
            dinosaurs.IndexOf("Muttaburrasaurus"))

        Console.WriteLine(vbLf & "Contains(""Caudipteryx""): {0}", _
            dinosaurs.Contains("Caudipteryx"))

        Console.WriteLine(vbLf & "Insert(2, ""Nanotyrannus"")")
        dinosaurs.Insert(2, "Nanotyrannus")
        Display(dinosaurs)

        Console.WriteLine(vbLf & "dinosaurs(2): {0}", dinosaurs(2))

        Console.WriteLine(vbLf & "dinosaurs(2) = ""Microraptor""")
        dinosaurs(2) = "Microraptor"
        Display(dinosaurs)

        Console.WriteLine(vbLf & "Remove(""Microraptor"")")
        dinosaurs.Remove("Microraptor")
        Display(dinosaurs)

        Console.WriteLine(vbLf & "RemoveAt(0)")
        dinosaurs.RemoveAt(0)
        Display(dinosaurs)
 
        Console.WriteLine(vbLf & "dinosaurs.Clear()")
        dinosaurs.Clear()
        Console.WriteLine("Count: {0}", dinosaurs.Count)

    End Sub
    
    Private Shared Sub Display(ByVal cs As Collection(Of String)) 
        Console.WriteLine()
        For Each item As String In cs
            Console.WriteLine(item)
        Next item
    End Sub
End Class

' This code example produces the following output:
'
'4 dinosaurs:
'
'Psitticosaurus
'Caudipteryx
'Compsognathus
'Muttaburrasaurus
'
'IndexOf("Muttaburrasaurus"): 3
'
'Contains("Caudipteryx"): True
'
'Insert(2, "Nanotyrannus")
'
'Psitticosaurus
'Caudipteryx
'Nanotyrannus
'Compsognathus
'Muttaburrasaurus
'
'dinosaurs(2): Nanotyrannus
'
'dinosaurs(2) = "Microraptor"
'
'Psitticosaurus
'Caudipteryx
'Microraptor
'Compsognathus
'Muttaburrasaurus
'
'Remove("Microraptor")
'
'Psitticosaurus
'Caudipteryx
'Compsognathus
'Muttaburrasaurus
'
'RemoveAt(0)
'
'Caudipteryx
'Compsognathus
'Muttaburrasaurus
'
'dinosaurs.Clear()
'Count: 0

Example 2

The following code example shows how to derive a collection class from a constructed type of the Collection<T> generic class, and how to override the protected InsertItem, RemoveItem, ClearItems, and SetItem methods to provide custom behavior for the Add, Insert, Remove, and Clear methods, and for setting the Item[Int32] property.

The custom behavior provided by this example is a Changed notification event that is raised at the end of each of the protected methods. The Dinosaurs class inherits Collection<string> (Collection(Of String) in Visual Basic) and defines the Changed event, which uses a DinosaursChangedEventArgs class for the event information, and an enumeration to identify the kind of change.

The code example calls several properties and methods of Collection<T> to demonstrate the custom event.

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;

public class Dinosaurs : Collection<string>
{
    public event EventHandler<DinosaursChangedEventArgs> Changed;

    protected override void InsertItem(int index, string newItem)
    {
        base.InsertItem(index, newItem);

        EventHandler<DinosaursChangedEventArgs> temp = Changed;
        if (temp != null)
        {
            temp(this, new DinosaursChangedEventArgs(
                ChangeType.Added, newItem, null));
        }
    }

    protected override void SetItem(int index, string newItem)
    {
        string replaced = Items[index];
        base.SetItem(index, newItem);

        EventHandler<DinosaursChangedEventArgs> temp = Changed;
        if (temp != null)
        {
            temp(this, new DinosaursChangedEventArgs(
                ChangeType.Replaced, replaced, newItem));
        }
    }

    protected override void RemoveItem(int index)
    {
        string removedItem = Items[index];
        base.RemoveItem(index);

        EventHandler<DinosaursChangedEventArgs> temp = Changed;
        if (temp != null)
        {
            temp(this, new DinosaursChangedEventArgs(
                ChangeType.Removed, removedItem, null));
        }
    }

    protected override void ClearItems()
    {
        base.ClearItems();

        EventHandler<DinosaursChangedEventArgs> temp = Changed;
        if (temp != null)
        {
            temp(this, new DinosaursChangedEventArgs(
                ChangeType.Cleared, null, null));
        }
    }
}

// Event argument for the Changed event.
//
public class DinosaursChangedEventArgs : EventArgs
{
    public readonly string ChangedItem;
    public readonly ChangeType ChangeType;
    public readonly string ReplacedWith;

    public DinosaursChangedEventArgs(ChangeType change, string item, 
        string replacement)
    {
        ChangeType = change;
        ChangedItem = item;
        ReplacedWith = replacement;
    }
}

public enum ChangeType
{
    Added, 
    Removed, 
    Replaced, 
    Cleared
};

public class Demo
{
    public static void Main()
    {
        Dinosaurs dinosaurs = new Dinosaurs();

        dinosaurs.Changed += ChangedHandler; 

        dinosaurs.Add("Psitticosaurus");
        dinosaurs.Add("Caudipteryx");
        dinosaurs.Add("Compsognathus");
        dinosaurs.Add("Muttaburrasaurus");

        Display(dinosaurs);
    
        Console.WriteLine("\nIndexOf(\"Muttaburrasaurus\"): {0}", 
            dinosaurs.IndexOf("Muttaburrasaurus"));

        Console.WriteLine("\nContains(\"Caudipteryx\"): {0}", 
            dinosaurs.Contains("Caudipteryx"));

        Console.WriteLine("\nInsert(2, \"Nanotyrannus\")");
        dinosaurs.Insert(2, "Nanotyrannus");

        Console.WriteLine("\ndinosaurs[2]: {0}", dinosaurs[2]);

        Console.WriteLine("\ndinosaurs[2] = \"Microraptor\"");
        dinosaurs[2] = "Microraptor";

        Console.WriteLine("\nRemove(\"Microraptor\")");
        dinosaurs.Remove("Microraptor");

        Console.WriteLine("\nRemoveAt(0)");
        dinosaurs.RemoveAt(0);

        Display(dinosaurs);
    }
    
    private static void Display(Collection<string> cs)
    {
        Console.WriteLine();
        foreach( string item in cs )
        {
            Console.WriteLine(item);
        }
    }

    private static void ChangedHandler(object source, 
        DinosaursChangedEventArgs e)
    {

        if (e.ChangeType==ChangeType.Replaced)
        {
            Console.WriteLine("{0} was replaced with {1}", e.ChangedItem, 
                e.ReplacedWith);
        }
        else if(e.ChangeType==ChangeType.Cleared)
        {
            Console.WriteLine("The dinosaur list was cleared.");
        }
        else
        {
            Console.WriteLine("{0} was {1}.", e.ChangedItem, e.ChangeType);
        }
    }
}

/* This code example produces the following output:

Psitticosaurus was Added.
Caudipteryx was Added.
Compsognathus was Added.
Muttaburrasaurus was Added.

Psitticosaurus
Caudipteryx
Compsognathus
Muttaburrasaurus

IndexOf("Muttaburrasaurus"): 3

Contains("Caudipteryx"): True

Insert(2, "Nanotyrannus")
Nanotyrannus was Added.

dinosaurs[2]: Nanotyrannus

dinosaurs[2] = "Microraptor"
Nanotyrannus was replaced with Microraptor

Remove("Microraptor")
Microraptor was Removed.

RemoveAt(0)
Psitticosaurus was Removed.

Caudipteryx
Compsognathus
Muttaburrasaurus
 */
Imports System
Imports System.Collections.Generic
Imports System.Collections.ObjectModel

Public Class Dinosaurs
    Inherits Collection(Of String)

    Public Event Changed As EventHandler(Of DinosaursChangedEventArgs)

    Protected Overrides Sub InsertItem( _
        ByVal index As Integer, ByVal newItem As String)

        MyBase.InsertItem(index, newItem)

        RaiseEvent Changed(Me, New DinosaursChangedEventArgs( _
            ChangeType.Added, newItem, Nothing))
    End Sub

    Protected Overrides Sub SetItem(ByVal index As Integer, _
        ByVal newItem As String)

        Dim replaced As String = Items(index)
        MyBase.SetItem(index, newItem)

        RaiseEvent Changed(Me, New DinosaursChangedEventArgs( _
            ChangeType.Replaced, replaced, newItem))
    End Sub

    Protected Overrides Sub RemoveItem(ByVal index As Integer)

        Dim removedItem As String = Items(index)
        MyBase.RemoveItem(index)

        RaiseEvent Changed(Me, New DinosaursChangedEventArgs( _
            ChangeType.Removed, removedItem, Nothing))
    End Sub

    Protected Overrides Sub ClearItems()
        MyBase.ClearItems()

        RaiseEvent Changed(Me, New DinosaursChangedEventArgs( _
            ChangeType.Cleared, Nothing, Nothing))
    End Sub

End Class

' Event argument for the Changed event.
'
Public Class DinosaursChangedEventArgs
    Inherits EventArgs

    Public ReadOnly ChangedItem As String
    Public ReadOnly ChangeType As ChangeType
    Public ReadOnly ReplacedWith As String

    Public Sub New(ByVal change As ChangeType, ByVal item As String, _
        ByVal replacement As String)

        ChangeType = change
        ChangedItem = item
        ReplacedWith = replacement
    End Sub
End Class

Public Enum ChangeType
    Added
    Removed
    Replaced
    Cleared
End Enum

Public Class Demo
    
    Public Shared Sub Main() 

        Dim dinosaurs As New Dinosaurs

        AddHandler dinosaurs.Changed, AddressOf ChangedHandler

        dinosaurs.Add("Psitticosaurus")
        dinosaurs.Add("Caudipteryx")
        dinosaurs.Add("Compsognathus")
        dinosaurs.Add("Muttaburrasaurus")

        Display(dinosaurs)
    
        Console.WriteLine(vbLf & "IndexOf(""Muttaburrasaurus""): {0}", _
            dinosaurs.IndexOf("Muttaburrasaurus"))

        Console.WriteLine(vbLf & "Contains(""Caudipteryx""): {0}", _
            dinosaurs.Contains("Caudipteryx"))

        Console.WriteLine(vbLf & "Insert(2, ""Nanotyrannus"")")
        dinosaurs.Insert(2, "Nanotyrannus")

        Console.WriteLine(vbLf & "dinosaurs(2): {0}", dinosaurs(2))

        Console.WriteLine(vbLf & "dinosaurs(2) = ""Microraptor""")
        dinosaurs(2) = "Microraptor"

        Console.WriteLine(vbLf & "Remove(""Microraptor"")")
        dinosaurs.Remove("Microraptor")

        Console.WriteLine(vbLf & "RemoveAt(0)")
        dinosaurs.RemoveAt(0)

        Display(dinosaurs)
 
    End Sub
    
    Private Shared Sub Display(ByVal cs As Collection(Of String)) 
        Console.WriteLine()
        For Each item As String In cs
            Console.WriteLine(item)
        Next item
    End Sub

    Private Shared Sub ChangedHandler(ByVal source As Object, _
        ByVal e As DinosaursChangedEventArgs)

        If e.ChangeType = ChangeType.Replaced Then
            Console.WriteLine("{0} was replaced with {1}", _
                e.ChangedItem, e.ReplacedWith)

        ElseIf e.ChangeType = ChangeType.Cleared Then
            Console.WriteLine("The dinosaur list was cleared.")

        Else
            Console.WriteLine("{0} was {1}.", _
                e.ChangedItem, e.ChangeType)
        End If
    End Sub

End Class

' This code example produces the following output:
'
'Psitticosaurus was Added.
'Caudipteryx was Added.
'Compsognathus was Added.
'Muttaburrasaurus was Added.
'
'Psitticosaurus
'Caudipteryx
'Compsognathus
'Muttaburrasaurus
'
'IndexOf("Muttaburrasaurus"): 3
'
'Contains("Caudipteryx"): True
'
'Insert(2, "Nanotyrannus")
'Nanotyrannus was Added.
'
'dinosaurs(2): Nanotyrannus
'
'dinosaurs(2) = "Microraptor"
'Nanotyrannus was replaced with Microraptor
'
'Remove("Microraptor")
'Microraptor was Removed.
'
'RemoveAt(0)
'Psitticosaurus was Removed.
'
'Caudipteryx
'Compsognathus
'Muttaburrasaurus

Remarks

The Collection<T> class can be used immediately by creating an instance of one of its constructed types; all you have to do is specify the type of object to be contained in the collection. In addition, you can derive your own collection type from any constructed type, or derive a generic collection type from the Collection<T> class itself.

The Collection<T> class provides protected methods that can be used to customize its behavior when adding and removing items, clearing the collection, or setting the value of an existing item.

Most Collection<T> objectscan be modified. However, a Collection<T> object that is initialized with a read-only IList<T> object cannot be modified. See ReadOnlyCollection<T> for a read-only version of this class.

Elements in this collection can be accessed using an integer index. Indexes in this collection are zero-based.

Collection<T> accepts null as a valid value for reference types and allows duplicate elements.

Notes to Inheritors

This base class is provided to make it easier for implementers to create a custom collection. Implementers are encouraged to extend this base class instead of creating their own.

Constructors

Collection<T>() Collection<T>() Collection<T>() Collection<T>()

Initializes a new instance of the Collection<T> class that is empty.

Collection<T>(IList<T>) Collection<T>(IList<T>) Collection<T>(IList<T>) Collection<T>(IList<T>)

Initializes a new instance of the Collection<T> class as a wrapper for the specified list.

Properties

Count Count Count Count

Gets the number of elements actually contained in the Collection<T>.

Items Items Items Items

Gets a IList<T> wrapper around the Collection<T>.

Item[Int32] Item[Int32] Item[Int32] Item[Int32]

Gets or sets the element at the specified index.

Methods

Add(T) Add(T) Add(T) Add(T)

Adds an object to the end of the Collection<T>.

Clear() Clear() Clear() Clear()

Removes all elements from the Collection<T>.

ClearItems() ClearItems() ClearItems() ClearItems()

Removes all elements from the Collection<T>.

Contains(T) Contains(T) Contains(T) Contains(T)

Determines whether an element is in the Collection<T>.

CopyTo(T[], Int32) CopyTo(T[], Int32) CopyTo(T[], Int32) CopyTo(T[], Int32)

Copies the entire Collection<T> to a compatible one-dimensional Array, starting at the specified index of the target array.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()

Returns an enumerator that iterates through the Collection<T>.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
IndexOf(T) IndexOf(T) IndexOf(T) IndexOf(T)

Searches for the specified object and returns the zero-based index of the first occurrence within the entire Collection<T>.

Insert(Int32, T) Insert(Int32, T) Insert(Int32, T) Insert(Int32, T)

Inserts an element into the Collection<T> at the specified index.

InsertItem(Int32, T) InsertItem(Int32, T) InsertItem(Int32, T) InsertItem(Int32, T)

Inserts an element into the Collection<T> at the specified index.

MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
Remove(T) Remove(T) Remove(T) Remove(T)

Removes the first occurrence of a specific object from the Collection<T>.

RemoveAt(Int32) RemoveAt(Int32) RemoveAt(Int32) RemoveAt(Int32)

Removes the element at the specified index of the Collection<T>.

RemoveItem(Int32) RemoveItem(Int32) RemoveItem(Int32) RemoveItem(Int32)

Removes the element at the specified index of the Collection<T>.

SetItem(Int32, T) SetItem(Int32, T) SetItem(Int32, T) SetItem(Int32, T)

Replaces the element at the specified index.

ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)

Explicit Interface Implementations

ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32) ICollection.CopyTo(Array, Int32)

Copies the elements of the ICollection to an Array, starting at a particular Array index.

ICollection.IsSynchronized ICollection.IsSynchronized ICollection.IsSynchronized ICollection.IsSynchronized

Gets a value indicating whether access to the ICollection is synchronized (thread safe).

ICollection.SyncRoot ICollection.SyncRoot ICollection.SyncRoot ICollection.SyncRoot

Gets an object that can be used to synchronize access to the ICollection.

ICollection<T>.IsReadOnly ICollection<T>.IsReadOnly ICollection<T>.IsReadOnly ICollection<T>.IsReadOnly

Gets a value indicating whether the ICollection<T> is read-only.

IEnumerable.GetEnumerator() IEnumerable.GetEnumerator() IEnumerable.GetEnumerator() IEnumerable.GetEnumerator()

Returns an enumerator that iterates through a collection.

IList.Add(Object) IList.Add(Object) IList.Add(Object) IList.Add(Object)

Adds an item to the IList.

IList.Contains(Object) IList.Contains(Object) IList.Contains(Object) IList.Contains(Object)

Determines whether the IList contains a specific value.

IList.IndexOf(Object) IList.IndexOf(Object) IList.IndexOf(Object) IList.IndexOf(Object)

Determines the index of a specific item in the IList.

IList.Insert(Int32, Object) IList.Insert(Int32, Object) IList.Insert(Int32, Object) IList.Insert(Int32, Object)

Inserts an item into the IList at the specified index.

IList.IsFixedSize IList.IsFixedSize IList.IsFixedSize IList.IsFixedSize

Gets a value indicating whether the IList has a fixed size.

IList.IsReadOnly IList.IsReadOnly IList.IsReadOnly IList.IsReadOnly

Gets a value indicating whether the IList is read-only.

IList.Item[Int32] IList.Item[Int32] IList.Item[Int32] IList.Item[Int32]

Gets or sets the element at the specified index.

IList.Remove(Object) IList.Remove(Object) IList.Remove(Object) IList.Remove(Object)

Removes the first occurrence of a specific object from the IList.

Extension Methods

ToImmutableArray<TSource>(IEnumerable<TSource>) ToImmutableArray<TSource>(IEnumerable<TSource>) ToImmutableArray<TSource>(IEnumerable<TSource>) ToImmutableArray<TSource>(IEnumerable<TSource>)

Creates an immutable array from the specified collection.

ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Constructs an immutable dictionary from an existing collection of elements, applying a transformation function to the source keys.

ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)

Constructs an immutable dictionary based on some transformation of a sequence.

ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>)

Enumerates a sequence of key/value pairs and produces an immutable dictionary of its contents.

ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IEqualityComparer<TKey>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IEqualityComparer<TKey>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IEqualityComparer<TKey>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IEqualityComparer<TKey>)

Enumerates a sequence of key/value pairs and produces an immutable dictionary of its contents by using the specified key comparer.

ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IEqualityComparer<TKey>, IEqualityComparer<TValue>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IEqualityComparer<TKey>, IEqualityComparer<TValue>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IEqualityComparer<TKey>, IEqualityComparer<TValue>) ToImmutableDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IEqualityComparer<TKey>, IEqualityComparer<TValue>)

Enumerates a sequence of key/value pairs and produces an immutable dictionary of its contents by using the specified key and value comparers.

ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>)

Enumerates and transforms a sequence, and produces an immutable dictionary of its contents.

ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>)

Enumerates and transforms a sequence, and produces an immutable dictionary of its contents by using the specified key comparer.

ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>, IEqualityComparer<TValue>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>, IEqualityComparer<TValue>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>, IEqualityComparer<TValue>) ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>, IEqualityComparer<TValue>)

Enumerates and transforms a sequence, and produces an immutable dictionary of its contents by using the specified key and value comparers.

ToImmutableHashSet<TSource>(IEnumerable<TSource>) ToImmutableHashSet<TSource>(IEnumerable<TSource>) ToImmutableHashSet<TSource>(IEnumerable<TSource>) ToImmutableHashSet<TSource>(IEnumerable<TSource>)

Enumerates a sequence and produces an immutable hash set of its contents.

ToImmutableHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) ToImmutableHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) ToImmutableHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) ToImmutableHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)

Enumerates a sequence, produces an immutable hash set of its contents, and uses the specified equality comparer for the set type.

ToImmutableList<TSource>(IEnumerable<TSource>) ToImmutableList<TSource>(IEnumerable<TSource>) ToImmutableList<TSource>(IEnumerable<TSource>) ToImmutableList<TSource>(IEnumerable<TSource>)

Enumerates a sequence and produces an immutable list of its contents.

ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>)

Enumerates a sequence of key/value pairs and produces an immutable sorted dictionary of its contents.

ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IComparer<TKey>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IComparer<TKey>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IComparer<TKey>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IComparer<TKey>)

Enumerates a sequence of key/value pairs and produces an immutable dictionary of its contents by using the specified key comparer.

ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IComparer<TKey>, IEqualityComparer<TValue>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IComparer<TKey>, IEqualityComparer<TValue>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IComparer<TKey>, IEqualityComparer<TValue>) ToImmutableSortedDictionary<TKey,TValue>(IEnumerable<KeyValuePair<TKey,TValue>>, IComparer<TKey>, IEqualityComparer<TValue>)

Enumerates a sequence of key/value pairs and produces an immutable sorted dictionary of its contents by using the specified key and value comparers.

ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>)

Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents.

ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>)

Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents by using the specified key comparer.

ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>, IEqualityComparer<TValue>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>, IEqualityComparer<TValue>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>, IEqualityComparer<TValue>) ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>, IEqualityComparer<TValue>)

Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents by using the specified key and value comparers.

ToImmutableSortedSet<TSource>(IEnumerable<TSource>) ToImmutableSortedSet<TSource>(IEnumerable<TSource>) ToImmutableSortedSet<TSource>(IEnumerable<TSource>) ToImmutableSortedSet<TSource>(IEnumerable<TSource>)

Enumerates a sequence and produces an immutable sorted set of its contents.

ToImmutableSortedSet<TSource>(IEnumerable<TSource>, IComparer<TSource>) ToImmutableSortedSet<TSource>(IEnumerable<TSource>, IComparer<TSource>) ToImmutableSortedSet<TSource>(IEnumerable<TSource>, IComparer<TSource>) ToImmutableSortedSet<TSource>(IEnumerable<TSource>, IComparer<TSource>)

Enumerates a sequence, produces an immutable sorted set of its contents, and uses the specified comparer.

CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>) CopyToDataTable<T>(IEnumerable<T>)

Returns a DataTable that contains copies of the DataRow objects, given an input IEnumerable<T> object where the generic parameter T is DataRow.

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption)

Copies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.

CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler) CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler)

Copies DataRow objects to the specified DataTable, given an input IEnumerable<T> object where the generic parameter T is DataRow.

Aggregate<TSource>(IEnumerable<TSource>, Func<TSource,TSource,TSource>) Aggregate<TSource>(IEnumerable<TSource>, Func<TSource,TSource,TSource>) Aggregate<TSource>(IEnumerable<TSource>, Func<TSource,TSource,TSource>) Aggregate<TSource>(IEnumerable<TSource>, Func<TSource,TSource,TSource>)

Applies an accumulator function over a sequence.

Aggregate<TSource,TAccumulate>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>) Aggregate<TSource,TAccumulate>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>) Aggregate<TSource,TAccumulate>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>) Aggregate<TSource,TAccumulate>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>)

Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.

Aggregate<TSource,TAccumulate,TResult>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, Func<TAccumulate,TResult>) Aggregate<TSource,TAccumulate,TResult>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, Func<TAccumulate,TResult>) Aggregate<TSource,TAccumulate,TResult>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, Func<TAccumulate,TResult>) Aggregate<TSource,TAccumulate,TResult>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, Func<TAccumulate,TResult>)

Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.

All<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) All<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) All<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) All<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Determines whether all elements of a sequence satisfy a condition.

Any<TSource>(IEnumerable<TSource>) Any<TSource>(IEnumerable<TSource>) Any<TSource>(IEnumerable<TSource>) Any<TSource>(IEnumerable<TSource>)

Determines whether a sequence contains any elements.

Any<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Any<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Any<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Any<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Determines whether any element of a sequence satisfies a condition.

Append<TSource>(IEnumerable<TSource>, TSource) Append<TSource>(IEnumerable<TSource>, TSource) Append<TSource>(IEnumerable<TSource>, TSource) Append<TSource>(IEnumerable<TSource>, TSource)

Appends a value to the end of the sequence.

AsEnumerable<TSource>(IEnumerable<TSource>) AsEnumerable<TSource>(IEnumerable<TSource>) AsEnumerable<TSource>(IEnumerable<TSource>) AsEnumerable<TSource>(IEnumerable<TSource>)

Returns the input typed as IEnumerable<T>.

Average(IEnumerable<Decimal>) Average(IEnumerable<Decimal>) Average(IEnumerable<Decimal>) Average(IEnumerable<Decimal>)

Computes the average of a sequence of Decimal values.

Average(IEnumerable<Double>) Average(IEnumerable<Double>) Average(IEnumerable<Double>) Average(IEnumerable<Double>)

Computes the average of a sequence of Double values.

Average(IEnumerable<Int32>) Average(IEnumerable<Int32>) Average(IEnumerable<Int32>) Average(IEnumerable<Int32>)

Computes the average of a sequence of Int32 values.

Average(IEnumerable<Int64>) Average(IEnumerable<Int64>) Average(IEnumerable<Int64>) Average(IEnumerable<Int64>)

Computes the average of a sequence of Int64 values.

Average(IEnumerable<Nullable<Decimal>>) Average(IEnumerable<Nullable<Decimal>>) Average(IEnumerable<Nullable<Decimal>>) Average(IEnumerable<Nullable<Decimal>>)

Computes the average of a sequence of nullable Decimal values.

Average(IEnumerable<Nullable<Double>>) Average(IEnumerable<Nullable<Double>>) Average(IEnumerable<Nullable<Double>>) Average(IEnumerable<Nullable<Double>>)

Computes the average of a sequence of nullable Double values.

Average(IEnumerable<Nullable<Int32>>) Average(IEnumerable<Nullable<Int32>>) Average(IEnumerable<Nullable<Int32>>) Average(IEnumerable<Nullable<Int32>>)

Computes the average of a sequence of nullable Int32 values.

Average(IEnumerable<Nullable<Int64>>) Average(IEnumerable<Nullable<Int64>>) Average(IEnumerable<Nullable<Int64>>) Average(IEnumerable<Nullable<Int64>>)

Computes the average of a sequence of nullable Int64 values.

Average(IEnumerable<Nullable<Single>>) Average(IEnumerable<Nullable<Single>>) Average(IEnumerable<Nullable<Single>>) Average(IEnumerable<Nullable<Single>>)

Computes the average of a sequence of nullable Single values.

Average(IEnumerable<Single>) Average(IEnumerable<Single>) Average(IEnumerable<Single>) Average(IEnumerable<Single>)

Computes the average of a sequence of Single values.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)

Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Double>)

Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)

Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)

Computes the average of a sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)

Computes the average of a sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)

Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)

Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)

Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)

Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.

Average<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Average<TSource>(IEnumerable<TSource>, Func<TSource,Single>)

Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.

Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable)

Casts the elements of an IEnumerable to the specified type.

Concat<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Concat<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Concat<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Concat<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Concatenates two sequences.

Contains<TSource>(IEnumerable<TSource>, TSource) Contains<TSource>(IEnumerable<TSource>, TSource) Contains<TSource>(IEnumerable<TSource>, TSource) Contains<TSource>(IEnumerable<TSource>, TSource)

Determines whether a sequence contains a specified element by using the default equality comparer.

Contains<TSource>(IEnumerable<TSource>, TSource, IEqualityComparer<TSource>) Contains<TSource>(IEnumerable<TSource>, TSource, IEqualityComparer<TSource>) Contains<TSource>(IEnumerable<TSource>, TSource, IEqualityComparer<TSource>) Contains<TSource>(IEnumerable<TSource>, TSource, IEqualityComparer<TSource>)

Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.

Count<TSource>(IEnumerable<TSource>) Count<TSource>(IEnumerable<TSource>) Count<TSource>(IEnumerable<TSource>) Count<TSource>(IEnumerable<TSource>)

Returns the number of elements in a sequence.

Count<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Count<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Count<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Count<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns a number that represents how many elements in the specified sequence satisfy a condition.

DefaultIfEmpty<TSource>(IEnumerable<TSource>) DefaultIfEmpty<TSource>(IEnumerable<TSource>) DefaultIfEmpty<TSource>(IEnumerable<TSource>) DefaultIfEmpty<TSource>(IEnumerable<TSource>)

Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.

DefaultIfEmpty<TSource>(IEnumerable<TSource>, TSource) DefaultIfEmpty<TSource>(IEnumerable<TSource>, TSource) DefaultIfEmpty<TSource>(IEnumerable<TSource>, TSource) DefaultIfEmpty<TSource>(IEnumerable<TSource>, TSource)

Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.

Distinct<TSource>(IEnumerable<TSource>) Distinct<TSource>(IEnumerable<TSource>) Distinct<TSource>(IEnumerable<TSource>) Distinct<TSource>(IEnumerable<TSource>)

Returns distinct elements from a sequence by using the default equality comparer to compare values.

Distinct<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) Distinct<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) Distinct<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) Distinct<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)

Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.

ElementAt<TSource>(IEnumerable<TSource>, Int32) ElementAt<TSource>(IEnumerable<TSource>, Int32) ElementAt<TSource>(IEnumerable<TSource>, Int32) ElementAt<TSource>(IEnumerable<TSource>, Int32)

Returns the element at a specified index in a sequence.

ElementAtOrDefault<TSource>(IEnumerable<TSource>, Int32) ElementAtOrDefault<TSource>(IEnumerable<TSource>, Int32) ElementAtOrDefault<TSource>(IEnumerable<TSource>, Int32) ElementAtOrDefault<TSource>(IEnumerable<TSource>, Int32)

Returns the element at a specified index in a sequence or a default value if the index is out of range.

Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Produces the set difference of two sequences by using the default equality comparer to compare values.

Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values.

First<TSource>(IEnumerable<TSource>) First<TSource>(IEnumerable<TSource>) First<TSource>(IEnumerable<TSource>) First<TSource>(IEnumerable<TSource>)

Returns the first element of a sequence.

First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the first element in a sequence that satisfies a specified condition.

FirstOrDefault<TSource>(IEnumerable<TSource>) FirstOrDefault<TSource>(IEnumerable<TSource>) FirstOrDefault<TSource>(IEnumerable<TSource>) FirstOrDefault<TSource>(IEnumerable<TSource>)

Returns the first element of a sequence, or a default value if the sequence contains no elements.

FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.

GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Groups the elements of a sequence according to a specified key selector function.

GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)

Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.

GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)

Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.

GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)

Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.

GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>) GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>) GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>) GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>)

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.

GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>, IEqualityComparer<TKey>)

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.

GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>) GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>) GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>) GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>)

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.

GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>, IEqualityComparer<TKey>) GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>, IEqualityComparer<TKey>)

Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.

GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>,TResult>) GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>,TResult>) GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>,TResult>) GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>,TResult>)

Correlates the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys.

GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>,TResult>, IEqualityComparer<TKey>) GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>,TResult>, IEqualityComparer<TKey>) GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>,TResult>, IEqualityComparer<TKey>) GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>,TResult>, IEqualityComparer<TKey>)

Correlates the elements of two sequences based on key equality and groups the results. A specified IEqualityComparer<T> is used to compare keys.

Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Produces the set intersection of two sequences by using the default equality comparer to compare values.

Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values.

Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>) Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>) Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>) Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>)

Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.

Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>, IEqualityComparer<TKey>) Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>, IEqualityComparer<TKey>) Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>, IEqualityComparer<TKey>) Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>, IEqualityComparer<TKey>)

Correlates the elements of two sequences based on matching keys. A specified IEqualityComparer<T> is used to compare keys.

Last<TSource>(IEnumerable<TSource>) Last<TSource>(IEnumerable<TSource>) Last<TSource>(IEnumerable<TSource>) Last<TSource>(IEnumerable<TSource>)

Returns the last element of a sequence.

Last<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Last<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Last<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Last<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the last element of a sequence that satisfies a specified condition.

LastOrDefault<TSource>(IEnumerable<TSource>) LastOrDefault<TSource>(IEnumerable<TSource>) LastOrDefault<TSource>(IEnumerable<TSource>) LastOrDefault<TSource>(IEnumerable<TSource>)

Returns the last element of a sequence, or a default value if the sequence contains no elements.

LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.

LongCount<TSource>(IEnumerable<TSource>) LongCount<TSource>(IEnumerable<TSource>) LongCount<TSource>(IEnumerable<TSource>) LongCount<TSource>(IEnumerable<TSource>)

Returns an Int64 that represents the total number of elements in a sequence.

LongCount<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) LongCount<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) LongCount<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) LongCount<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns an Int64 that represents how many elements in a sequence satisfy a condition.

Max(IEnumerable<Decimal>) Max(IEnumerable<Decimal>) Max(IEnumerable<Decimal>) Max(IEnumerable<Decimal>)

Returns the maximum value in a sequence of Decimal values.

Max(IEnumerable<Double>) Max(IEnumerable<Double>) Max(IEnumerable<Double>) Max(IEnumerable<Double>)

Returns the maximum value in a sequence of Double values.

Max(IEnumerable<Int32>) Max(IEnumerable<Int32>) Max(IEnumerable<Int32>) Max(IEnumerable<Int32>)

Returns the maximum value in a sequence of Int32 values.

Max(IEnumerable<Int64>) Max(IEnumerable<Int64>) Max(IEnumerable<Int64>) Max(IEnumerable<Int64>)

Returns the maximum value in a sequence of Int64 values.

Max(IEnumerable<Nullable<Decimal>>) Max(IEnumerable<Nullable<Decimal>>) Max(IEnumerable<Nullable<Decimal>>) Max(IEnumerable<Nullable<Decimal>>)

Returns the maximum value in a sequence of nullable Decimal values.

Max(IEnumerable<Nullable<Double>>) Max(IEnumerable<Nullable<Double>>) Max(IEnumerable<Nullable<Double>>) Max(IEnumerable<Nullable<Double>>)

Returns the maximum value in a sequence of nullable Double values.

Max(IEnumerable<Nullable<Int32>>) Max(IEnumerable<Nullable<Int32>>) Max(IEnumerable<Nullable<Int32>>) Max(IEnumerable<Nullable<Int32>>)

Returns the maximum value in a sequence of nullable Int32 values.

Max(IEnumerable<Nullable<Int64>>) Max(IEnumerable<Nullable<Int64>>) Max(IEnumerable<Nullable<Int64>>) Max(IEnumerable<Nullable<Int64>>)

Returns the maximum value in a sequence of nullable Int64 values.

Max(IEnumerable<Nullable<Single>>) Max(IEnumerable<Nullable<Single>>) Max(IEnumerable<Nullable<Single>>) Max(IEnumerable<Nullable<Single>>)

Returns the maximum value in a sequence of nullable Single values.

Max(IEnumerable<Single>) Max(IEnumerable<Single>) Max(IEnumerable<Single>) Max(IEnumerable<Single>)

Returns the maximum value in a sequence of Single values.

Max<TSource>(IEnumerable<TSource>) Max<TSource>(IEnumerable<TSource>) Max<TSource>(IEnumerable<TSource>) Max<TSource>(IEnumerable<TSource>)

Returns the maximum value in a generic sequence.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)

Invokes a transform function on each element of a sequence and returns the maximum Decimal value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Double>)

Invokes a transform function on each element of a sequence and returns the maximum Double value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)

Invokes a transform function on each element of a sequence and returns the maximum Int32 value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)

Invokes a transform function on each element of a sequence and returns the maximum Int64 value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)

Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.

Max<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Max<TSource>(IEnumerable<TSource>, Func<TSource,Single>)

Invokes a transform function on each element of a sequence and returns the maximum Single value.

Max<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Max<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Max<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Max<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)

Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.

Min(IEnumerable<Decimal>) Min(IEnumerable<Decimal>) Min(IEnumerable<Decimal>) Min(IEnumerable<Decimal>)

Returns the minimum value in a sequence of Decimal values.

Min(IEnumerable<Double>) Min(IEnumerable<Double>) Min(IEnumerable<Double>) Min(IEnumerable<Double>)

Returns the minimum value in a sequence of Double values.

Min(IEnumerable<Int32>) Min(IEnumerable<Int32>) Min(IEnumerable<Int32>) Min(IEnumerable<Int32>)

Returns the minimum value in a sequence of Int32 values.

Min(IEnumerable<Int64>) Min(IEnumerable<Int64>) Min(IEnumerable<Int64>) Min(IEnumerable<Int64>)

Returns the minimum value in a sequence of Int64 values.

Min(IEnumerable<Nullable<Decimal>>) Min(IEnumerable<Nullable<Decimal>>) Min(IEnumerable<Nullable<Decimal>>) Min(IEnumerable<Nullable<Decimal>>)

Returns the minimum value in a sequence of nullable Decimal values.

Min(IEnumerable<Nullable<Double>>) Min(IEnumerable<Nullable<Double>>) Min(IEnumerable<Nullable<Double>>) Min(IEnumerable<Nullable<Double>>)

Returns the minimum value in a sequence of nullable Double values.

Min(IEnumerable<Nullable<Int32>>) Min(IEnumerable<Nullable<Int32>>) Min(IEnumerable<Nullable<Int32>>) Min(IEnumerable<Nullable<Int32>>)

Returns the minimum value in a sequence of nullable Int32 values.

Min(IEnumerable<Nullable<Int64>>) Min(IEnumerable<Nullable<Int64>>) Min(IEnumerable<Nullable<Int64>>) Min(IEnumerable<Nullable<Int64>>)

Returns the minimum value in a sequence of nullable Int64 values.

Min(IEnumerable<Nullable<Single>>) Min(IEnumerable<Nullable<Single>>) Min(IEnumerable<Nullable<Single>>) Min(IEnumerable<Nullable<Single>>)

Returns the minimum value in a sequence of nullable Single values.

Min(IEnumerable<Single>) Min(IEnumerable<Single>) Min(IEnumerable<Single>) Min(IEnumerable<Single>)

Returns the minimum value in a sequence of Single values.

Min<TSource>(IEnumerable<TSource>) Min<TSource>(IEnumerable<TSource>) Min<TSource>(IEnumerable<TSource>) Min<TSource>(IEnumerable<TSource>)

Returns the minimum value in a generic sequence.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)

Invokes a transform function on each element of a sequence and returns the minimum Decimal value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Double>)

Invokes a transform function on each element of a sequence and returns the minimum Double value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)

Invokes a transform function on each element of a sequence and returns the minimum Int32 value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)

Invokes a transform function on each element of a sequence and returns the minimum Int64 value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)

Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.

Min<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Min<TSource>(IEnumerable<TSource>, Func<TSource,Single>)

Invokes a transform function on each element of a sequence and returns the minimum Single value.

Min<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Min<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Min<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Min<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)

Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.

OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable)

Filters the elements of an IEnumerable based on a specified type.

OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Sorts the elements of a sequence in ascending order according to a key.

OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>) OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>) OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>) OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)

Sorts the elements of a sequence in ascending order by using a specified comparer.

OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Sorts the elements of a sequence in descending order according to a key.

OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>) OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>) OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>) OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)

Sorts the elements of a sequence in descending order by using a specified comparer.

Prepend<TSource>(IEnumerable<TSource>, TSource) Prepend<TSource>(IEnumerable<TSource>, TSource) Prepend<TSource>(IEnumerable<TSource>, TSource) Prepend<TSource>(IEnumerable<TSource>, TSource)

Adds a value to the beginning of the sequence.

Reverse<TSource>(IEnumerable<TSource>) Reverse<TSource>(IEnumerable<TSource>) Reverse<TSource>(IEnumerable<TSource>) Reverse<TSource>(IEnumerable<TSource>)

Inverts the order of the elements in a sequence.

Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>) Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)

Projects each element of a sequence into a new form.

Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,TResult>) Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,TResult>) Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,TResult>) Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,TResult>)

Projects each element of a sequence into a new form by incorporating the element's index.

SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TResult>>) SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TResult>>) SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TResult>>) SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TResult>>)

Projects each element of a sequence to an IEnumerable<T> and flattens the resulting sequences into one sequence.

SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TResult>>) SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TResult>>) SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TResult>>) SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TResult>>)

Projects each element of a sequence to an IEnumerable<T>, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.

SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>) SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>) SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>) SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>)

Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.

SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>) SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>) SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>) SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>)

Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.

SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.

SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>.

Single<TSource>(IEnumerable<TSource>) Single<TSource>(IEnumerable<TSource>) Single<TSource>(IEnumerable<TSource>) Single<TSource>(IEnumerable<TSource>)

Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.

Single<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Single<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Single<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Single<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.

SingleOrDefault<TSource>(IEnumerable<TSource>) SingleOrDefault<TSource>(IEnumerable<TSource>) SingleOrDefault<TSource>(IEnumerable<TSource>) SingleOrDefault<TSource>(IEnumerable<TSource>)

Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.

SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.

Skip<TSource>(IEnumerable<TSource>, Int32) Skip<TSource>(IEnumerable<TSource>, Int32) Skip<TSource>(IEnumerable<TSource>, Int32) Skip<TSource>(IEnumerable<TSource>, Int32)

Bypasses a specified number of elements in a sequence and then returns the remaining elements.

SkipLast<TSource>(IEnumerable<TSource>, Int32) SkipLast<TSource>(IEnumerable<TSource>, Int32) SkipLast<TSource>(IEnumerable<TSource>, Int32) SkipLast<TSource>(IEnumerable<TSource>, Int32)
SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.

SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)

Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.

Sum(IEnumerable<Decimal>) Sum(IEnumerable<Decimal>) Sum(IEnumerable<Decimal>) Sum(IEnumerable<Decimal>)

Computes the sum of a sequence of Decimal values.

Sum(IEnumerable<Double>) Sum(IEnumerable<Double>) Sum(IEnumerable<Double>) Sum(IEnumerable<Double>)

Computes the sum of a sequence of Double values.

Sum(IEnumerable<Int32>) Sum(IEnumerable<Int32>) Sum(IEnumerable<Int32>) Sum(IEnumerable<Int32>)

Computes the sum of a sequence of Int32 values.

Sum(IEnumerable<Int64>) Sum(IEnumerable<Int64>) Sum(IEnumerable<Int64>) Sum(IEnumerable<Int64>)

Computes the sum of a sequence of Int64 values.

Sum(IEnumerable<Nullable<Decimal>>) Sum(IEnumerable<Nullable<Decimal>>) Sum(IEnumerable<Nullable<Decimal>>) Sum(IEnumerable<Nullable<Decimal>>)

Computes the sum of a sequence of nullable Decimal values.

Sum(IEnumerable<Nullable<Double>>) Sum(IEnumerable<Nullable<Double>>) Sum(IEnumerable<Nullable<Double>>) Sum(IEnumerable<Nullable<Double>>)

Computes the sum of a sequence of nullable Double values.

Sum(IEnumerable<Nullable<Int32>>) Sum(IEnumerable<Nullable<Int32>>) Sum(IEnumerable<Nullable<Int32>>) Sum(IEnumerable<Nullable<Int32>>)

Computes the sum of a sequence of nullable Int32 values.

Sum(IEnumerable<Nullable<Int64>>) Sum(IEnumerable<Nullable<Int64>>) Sum(IEnumerable<Nullable<Int64>>) Sum(IEnumerable<Nullable<Int64>>)

Computes the sum of a sequence of nullable Int64 values.

Sum(IEnumerable<Nullable<Single>>) Sum(IEnumerable<Nullable<Single>>) Sum(IEnumerable<Nullable<Single>>) Sum(IEnumerable<Nullable<Single>>)

Computes the sum of a sequence of nullable Single values.

Sum(IEnumerable<Single>) Sum(IEnumerable<Single>) Sum(IEnumerable<Single>) Sum(IEnumerable<Single>)

Computes the sum of a sequence of Single values.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)

Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Double>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Double>)

Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int32>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)

Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int64>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)

Computes the sum of the sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)

Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)

Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)

Computes the sum of the sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)

Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)

Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.

Sum<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Single>) Sum<TSource>(IEnumerable<TSource>, Func<TSource,Single>)

Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.

Take<TSource>(IEnumerable<TSource>, Int32) Take<TSource>(IEnumerable<TSource>, Int32) Take<TSource>(IEnumerable<TSource>, Int32) Take<TSource>(IEnumerable<TSource>, Int32)

Returns a specified number of contiguous elements from the start of a sequence.

TakeLast<TSource>(IEnumerable<TSource>, Int32) TakeLast<TSource>(IEnumerable<TSource>, Int32) TakeLast<TSource>(IEnumerable<TSource>, Int32) TakeLast<TSource>(IEnumerable<TSource>, Int32)
TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Returns elements from a sequence as long as a specified condition is true.

TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)

Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.

ToArray<TSource>(IEnumerable<TSource>) ToArray<TSource>(IEnumerable<TSource>) ToArray<TSource>(IEnumerable<TSource>) ToArray<TSource>(IEnumerable<TSource>)

Creates an array from a IEnumerable<T>.

ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function.

ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)

Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function and key comparer.

ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)

Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to specified key selector and element selector functions.

ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)

Creates a Dictionary<TKey,TValue> from an IEnumerable<T> according to a specified key selector function, a comparer, and an element selector function.

ToHashSet<TSource>(IEnumerable<TSource>) ToHashSet<TSource>(IEnumerable<TSource>) ToHashSet<TSource>(IEnumerable<TSource>) ToHashSet<TSource>(IEnumerable<TSource>)

Creates a HashSet<T> from an IEnumerable<T>.

ToHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) ToHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) ToHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>) ToHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)

Creates a HashSet<T> from an IEnumerable<T> using the comparer to compare keys

ToList<TSource>(IEnumerable<TSource>) ToList<TSource>(IEnumerable<TSource>) ToList<TSource>(IEnumerable<TSource>) ToList<TSource>(IEnumerable<TSource>)

Creates a List<T> from an IEnumerable<T>.

ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)

Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function.

ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>) ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)

Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function and key comparer.

ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>) ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)

Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to specified key selector and element selector functions.

ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>) ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)

Creates a Lookup<TKey,TElement> from an IEnumerable<T> according to a specified key selector function, a comparer and an element selector function.

Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>) Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)

Produces the set union of two sequences by using the default equality comparer.

Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

Produces the set union of two sequences by using a specified IEqualityComparer<T>.

Where<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Where<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Where<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>) Where<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)

Filters a sequence of values based on a predicate.

Where<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) Where<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) Where<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>) Where<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)

Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.

Zip<TFirst,TSecond,TResult>(IEnumerable<TFirst>, IEnumerable<TSecond>, Func<TFirst,TSecond,TResult>) Zip<TFirst,TSecond,TResult>(IEnumerable<TFirst>, IEnumerable<TSecond>, Func<TFirst,TSecond,TResult>) Zip<TFirst,TSecond,TResult>(IEnumerable<TFirst>, IEnumerable<TSecond>, Func<TFirst,TSecond,TResult>) Zip<TFirst,TSecond,TResult>(IEnumerable<TFirst>, IEnumerable<TSecond>, Func<TFirst,TSecond,TResult>)

Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.

AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable)

Enables parallelization of a query.

AsParallel<TSource>(IEnumerable<TSource>) AsParallel<TSource>(IEnumerable<TSource>) AsParallel<TSource>(IEnumerable<TSource>) AsParallel<TSource>(IEnumerable<TSource>)

Enables parallelization of a query.

AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable)

Converts an IEnumerable to an IQueryable.

AsQueryable<TElement>(IEnumerable<TElement>) AsQueryable<TElement>(IEnumerable<TElement>) AsQueryable<TElement>(IEnumerable<TElement>) AsQueryable<TElement>(IEnumerable<TElement>)

Converts a generic IEnumerable<T> to a generic IQueryable<T>.

Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>) Ancestors<T>(IEnumerable<T>)

Returns a collection of elements that contains the ancestors of every node in the source collection.

Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName) Ancestors<T>(IEnumerable<T>, XName)

Returns a filtered collection of elements that contains the ancestors of every node in the source collection. Only elements that have a matching XName are included in the collection.

AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>)

Returns a collection of elements that contains every element in the source collection, and the ancestors of every element in the source collection.

AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName)

Returns a filtered collection of elements that contains every element in the source collection, and the ancestors of every element in the source collection. Only elements that have a matching XName are included in the collection.

Attributes(IEnumerable<XElement>) Attributes(IEnumerable<XElement>) Attributes(IEnumerable<XElement>) Attributes(IEnumerable<XElement>)

Returns a collection of the attributes of every element in the source collection.

Attributes(IEnumerable<XElement>, XName) Attributes(IEnumerable<XElement>, XName) Attributes(IEnumerable<XElement>, XName) Attributes(IEnumerable<XElement>, XName)

Returns a filtered collection of the attributes of every element in the source collection. Only elements that have a matching XName are included in the collection.

DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>) DescendantNodes<T>(IEnumerable<T>)

Returns a collection of the descendant nodes of every document and element in the source collection.

DescendantNodesAndSelf(IEnumerable<XElement>) DescendantNodesAndSelf(IEnumerable<XElement>) DescendantNodesAndSelf(IEnumerable<XElement>) DescendantNodesAndSelf(IEnumerable<XElement>)

Returns a collection of nodes that contains every element in the source collection, and the descendant nodes of every element in the source collection.

Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>) Descendants<T>(IEnumerable<T>)

Returns a collection of elements that contains the descendant elements of every element and document in the source collection.

Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName) Descendants<T>(IEnumerable<T>, XName)

Returns a filtered collection of elements that contains the descendant elements of every element and document in the source collection. Only elements that have a matching XName are included in the collection.

DescendantsAndSelf(IEnumerable<XElement>) DescendantsAndSelf(IEnumerable<XElement>) DescendantsAndSelf(IEnumerable<XElement>) DescendantsAndSelf(IEnumerable<XElement>)

Returns a collection of elements that contains every element in the source collection, and the descendent elements of every element in the source collection.

DescendantsAndSelf(IEnumerable<XElement>, XName) DescendantsAndSelf(IEnumerable<XElement>, XName) DescendantsAndSelf(IEnumerable<XElement>, XName) DescendantsAndSelf(IEnumerable<XElement>, XName)

Returns a filtered collection of elements that contains every element in the source collection, and the descendents of every element in the source collection. Only elements that have a matching XName are included in the collection.

Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>) Elements<T>(IEnumerable<T>)

Returns a collection of the child elements of every element and document in the source collection.

Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName) Elements<T>(IEnumerable<T>, XName)

Returns a filtered collection of the child elements of every element and document in the source collection. Only elements that have a matching XName are included in the collection.

InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>) InDocumentOrder<T>(IEnumerable<T>)

Returns a collection of nodes that contains all nodes in the source collection, sorted in document order.

Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>) Nodes<T>(IEnumerable<T>)

Returns a collection of the child nodes of every document and element in the source collection.

Remove(IEnumerable<XAttribute>) Remove(IEnumerable<XAttribute>) Remove(IEnumerable<XAttribute>) Remove(IEnumerable<XAttribute>)

Removes every attribute in the source collection from its parent element.

Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>) Remove<T>(IEnumerable<T>)

Removes every node in the source collection from its parent node.

Applies to

Thread Safety

Public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

A Collection<T> can support multiple readers concurrently, as long as the collection is not modified. Even so, enumerating through a collection is intrinsically not a thread-safe procedure. To guarantee thread safety during enumeration, you can lock the collection during the entire enumeration. To allow the collection to be accessed by multiple threads for reading and writing, you must implement your own synchronization.

See Also