ObjectSet<TEntity> Class

Definition

Namespace:: System.Data.Objects

Assembly:: System.Data.Entity.dll

Represents a typed entity set that is used to perform create, read, update, and delete operations.

generic <typename TEntity>
 where TEntity : classpublic ref class ObjectSet : System::Data::Objects::ObjectQuery<TEntity>, System::Collections::Generic::IEnumerable<TEntity>, System::Data::Objects::IObjectSet<TEntity>, System::Linq::IQueryable<TEntity>

public class ObjectSet<TEntity> : System.Data.Objects.ObjectQuery<TEntity>, System.Collections.Generic.IEnumerable<TEntity>, System.Data.Objects.IObjectSet<TEntity>, System.Linq.IQueryable<TEntity> where TEntity : class

type ObjectSet<'Entity (requires 'Entity : null)> = class
    inherit ObjectQuery<'Entity (requires 'Entity : null)>
    interface IObjectSet<'Entity (requires 'Entity : null)>
    interface IQueryable<'Entity (requires 'Entity : null)>
    interface seq<'Entity (requires 'Entity : null)>
    interface IQueryable
    interface IEnumerable

type ObjectSet<'Entity (requires 'Entity : null)> = class
    inherit ObjectQuery<'Entity (requires 'Entity : null)>
    interface IObjectSet<'Entity (requires 'Entity : null)>
    interface IQueryable<'Entity (requires 'Entity : null)>
    interface seq<'Entity (requires 'Entity : null)>
    interface IEnumerable
    interface IQueryable

Public Class ObjectSet(Of TEntity)
Inherits ObjectQuery(Of TEntity)
Implements IEnumerable(Of TEntity), IObjectSet(Of TEntity), IQueryable(Of TEntity)

Type Parameters

TEntity

The entity type.

Inheritance: Object

ObjectQuery

ObjectQuery<TEntity>
ObjectSet<TEntity>

Implements: IEnumerable<T> IEnumerable<TEntity> IEnumerable IObjectSet<TEntity> IQueryable IQueryable<TEntity>

Remarks

The ObjectSet<TEntity> class allows you to operate on a typed entity set without having to specify the entity set name as an argument to each method call. The ObjectSet<TEntity> class extends the functionality of the ObjectQuery<T> class to provide object context functionality, such as adding and deleting objects, in the context of a typed entity set that is accessed from the ObjectContext.

Properties

CommandText	Returns the command text for the query. (Inherited from ObjectQuery)
Context	Gets the object context associated with this object query. (Inherited from ObjectQuery)
EnablePlanCaching	Gets or sets a value that indicates whether the query plan should be cached. (Inherited from ObjectQuery)
EntitySet	Gets the metadata of the entity set represented by this ObjectSet<TEntity> instance.
MergeOption	Gets or sets how objects returned from a query are added to the object context. (Inherited from ObjectQuery)
Name	Gets or sets the name of this object query. (Inherited from ObjectQuery<T>)
Parameters	Gets the parameter collection for this object query. (Inherited from ObjectQuery)

Methods

AddObject(TEntity)	Adds an object to the object context in the current entity set.
ApplyCurrentValues(TEntity)	Copies the scalar values from the supplied object into the object in the ObjectContext that has the same key.
ApplyOriginalValues(TEntity)	Sets the OriginalValues property of an ObjectStateEntry to match the property values of a supplied object.
Attach(TEntity)	Attaches an object or object graph to the object context in the current entity set.
CreateObject()	Creates a new entity type object.
CreateObject<T>()	Creates an instance of the specified type.
DeleteObject(TEntity)	Marks an object for deletion.
Detach(TEntity)	Removes the object from the object context.
Distinct()	Limits the query to unique results. (Inherited from ObjectQuery<T>)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
Except(ObjectQuery<T>)	Limits the query results by excluding results based on the results of another object query. (Inherited from ObjectQuery<T>)
Execute(MergeOption)	Executes the object query with the specified merge option. (Inherited from ObjectQuery<T>)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetResultType()	Returns information about the result type of the query. (Inherited from ObjectQuery)
GetType()	Gets the Type of the current instance. (Inherited from Object)
GroupBy(String, String, ObjectParameter[])	Groups the query results by the specified criteria. (Inherited from ObjectQuery<T>)
Include(String)	Specifies the related objects to include in the query results. (Inherited from ObjectQuery<T>)
Intersect(ObjectQuery<T>)	Limits the query results by including only the results that exist in another object query. (Inherited from ObjectQuery<T>)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
OfType<TResultType>()	Limits the query to only results of a specific type. (Inherited from ObjectQuery<T>)
OrderBy(String, ObjectParameter[])	Orders the query results by the specified criteria. (Inherited from ObjectQuery<T>)
Select(String, ObjectParameter[])	Limits the query results to only the properties that are defined in the specified projection. (Inherited from ObjectQuery<T>)
SelectValue<TResultType>(String, ObjectParameter[])	Limits the query results to only the property specified in the projection. (Inherited from ObjectQuery<T>)
Skip(String, String, ObjectParameter[])	Orders the query results by the specified criteria and skips a specified number of results. (Inherited from ObjectQuery<T>)
Top(String, ObjectParameter[])	Limits the query results to a specified number of items. (Inherited from ObjectQuery<T>)
ToString()	Returns a string that represents the current object. (Inherited from Object)
ToTraceString()	Returns the commands to execute against the data source. (Inherited from ObjectQuery)
Union(ObjectQuery<T>)	Combines the results of the query with the results of another object query, without any duplicates. (Inherited from ObjectQuery<T>)
UnionAll(ObjectQuery<T>)	Combines the results of the query with the results of another object query, including all duplicates. (Inherited from ObjectQuery<T>)
Where(String, ObjectParameter[])	Limits the query to results that match specified filtering criteria. (Inherited from ObjectQuery<T>)

Explicit Interface Implementations

IEnumerable.GetEnumerator()	Returns an enumerator that iterates through a collection. (Inherited from ObjectQuery)
IEnumerable<T>.GetEnumerator()	Returns an enumerator that iterates through the results of the query. (Inherited from ObjectQuery<T>)
IListSource.ContainsListCollection	Gets a value that indicates whether the collection returned by the query contains collection objects. (Inherited from ObjectQuery)
IListSource.GetList()	Returns the collection as an IList used for data binding. (Inherited from ObjectQuery)
IQueryable.ElementType	Gets the result element type for this query instance. (Inherited from ObjectQuery)
IQueryable.Expression	Gets the expression describing this query. (Inherited from ObjectQuery)
IQueryable.Provider	Gets the LINQ IQueryProvider associated with this query instance. (Inherited from ObjectQuery)

Extension Methods

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)	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)	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>)	Applies an accumulator function over a sequence.
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>)	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>)	Determines whether all elements of a sequence satisfy a condition.
Any<TSource>(IEnumerable<TSource>)	Determines whether a sequence contains any elements.
Any<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Determines whether any element of a sequence satisfies a condition.
Append<TSource>(IEnumerable<TSource>, TSource)	Appends a value to the end of the sequence.
AsEnumerable<TSource>(IEnumerable<TSource>)	Returns the input typed as IEnumerable<T>.
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>)	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>)	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>)	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>>)	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>>)	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>>)	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>>)	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>>)	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>)	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)	Casts the elements of an IEnumerable to the specified type.
Concat<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)	Concatenates two sequences.
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>)	Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.
Count<TSource>(IEnumerable<TSource>)	Returns the number of elements in a sequence.
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>)	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)	Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.
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>)	Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.
ElementAt<TSource>(IEnumerable<TSource>, Int32)	Returns the element at a specified index in a sequence.
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>)	Produces the set difference of two sequences by using the default equality comparer to compare values.
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>)	Returns the first element of a sequence.
First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns the first element in a sequence that satisfies a specified condition.
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>)	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>)	Groups the elements of a sequence according to a specified key selector function.
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>)	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>)	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>)	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>)	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>)	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>)	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>)	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>)	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>)	Produces the set intersection of two sequences by using the default equality comparer to compare values.
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>)	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>)	Correlates the elements of two sequences based on matching keys. A specified IEqualityComparer<T> is used to compare keys.
Last<TSource>(IEnumerable<TSource>)	Returns the last element of a sequence.
Last<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns the last element of a sequence that satisfies a specified condition.
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>)	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>)	Returns an Int64 that represents the total number of elements in a sequence.
LongCount<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)	Returns an Int64 that represents how many elements in a sequence satisfy a condition.
Max<TSource>(IEnumerable<TSource>)	Returns the maximum value in a generic sequence.
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>)	Invokes a transform function on each element of a sequence and returns the maximum Double value.
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>)	Invokes a transform function on each element of a sequence and returns the maximum Int64 value.
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>>)	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>>)	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>>)	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>>)	Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.
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>)	Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.
Min<TSource>(IEnumerable<TSource>)	Returns the minimum value in a generic sequence.
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>)	Invokes a transform function on each element of a sequence and returns the minimum Double value.
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>)	Invokes a transform function on each element of a sequence and returns the minimum Int64 value.
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>>)	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>>)	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>>)	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>>)	Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.
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>)	Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.
OfType<TResult>(IEnumerable)	Filters the elements of an IEnumerable based on a specified type.
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>)	Sorts the elements of a sequence in ascending order by using a specified comparer.
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>)	Sorts the elements of a sequence in descending order by using a specified comparer.
Prepend<TSource>(IEnumerable<TSource>, TSource)	Adds a value to the beginning of the sequence.
Reverse<TSource>(IEnumerable<TSource>)	Inverts the order of the elements in a sequence.
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>)	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>>)	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>>)	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>)	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>)	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>)	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>)	Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>.
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>)	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>)	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>)	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)	Bypasses a specified number of elements in a sequence and then returns the remaining elements.
SkipLast<TSource>(IEnumerable<TSource>, Int32)	Returns a new enumerable collection that contains the elements from `source` with the last `count` elements of the source collection omitted.
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>)	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<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>)	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>)	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>)	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>>)	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>>)	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>>)	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>>)	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>>)	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>)	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)	Returns a specified number of contiguous elements from the start of a sequence.
TakeLast<TSource>(IEnumerable<TSource>, Int32)	Returns a new enumerable collection that contains the last `count` elements from `source`.
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>)	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>)	Creates an array from a IEnumerable<T>.
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>)	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>)	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>)	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>)	Creates a HashSet<T> from an IEnumerable<T>.
ToHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)	Creates a HashSet<T> from an IEnumerable<T> using the `comparer` to compare keys.
ToList<TSource>(IEnumerable<TSource>)	Creates a List<T> from an IEnumerable<T>.
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>)	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>)	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>)	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>)	Produces the set union of two sequences by using the default equality comparer.
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>)	Filters a sequence of values based on a predicate.
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>(IEnumerable<TFirst>, IEnumerable<TSecond>)	Produces a sequence of tuples with elements from the two specified sequences.
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)	Enables parallelization of a query.
AsParallel<TSource>(IEnumerable<TSource>)	Enables parallelization of a query.
Aggregate<TSource>(IQueryable<TSource>, Expression<Func<TSource,TSource,TSource>>)	Applies an accumulator function over a sequence.
Aggregate<TSource,TAccumulate>(IQueryable<TSource>, TAccumulate, Expression<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>(IQueryable<TSource>, TAccumulate, Expression<Func<TAccumulate,TSource,TAccumulate>>, Expression<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>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Determines whether all the elements of a sequence satisfy a condition.
Any<TSource>(IQueryable<TSource>)	Determines whether a sequence contains any elements.
Any<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Determines whether any element of a sequence satisfies a condition.
Append<TSource>(IQueryable<TSource>, TSource)	Returns a new queryable sequence that contains the elements from `source` plus the specified `element` appended at the end.
AsQueryable(IEnumerable)	Converts an IEnumerable to an IQueryable.
AsQueryable<TElement>(IEnumerable<TElement>)	Converts a generic IEnumerable<T> to a generic IQueryable<T>.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>)	Computes the average of a sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>)	Computes the average of a sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>)	Computes the average of a sequence of Int32 values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>)	Computes the average of a sequence of Int64 values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>)	Computes the average of a sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>)	Computes the average of a sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>)	Computes the average of a sequence of nullable Int32 values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>)	Computes the average of a sequence of nullable Int64 values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>)	Computes the average of a sequence of nullable Single values that is obtained by invoking a projection function on each element of the input sequence.
Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>)	Computes the average of a sequence of Single values that is obtained by invoking a projection function on each element of the input sequence.
Cast<TResult>(IQueryable)	Converts the elements of an IQueryable to the specified type.
Concat<TSource>(IQueryable<TSource>, IEnumerable<TSource>)	Concatenates two sequences.
Contains<TSource>(IQueryable<TSource>, TSource)	Determines whether a sequence contains a specified element by using the default equality comparer.
Contains<TSource>(IQueryable<TSource>, TSource, IEqualityComparer<TSource>)	Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.
Count<TSource>(IQueryable<TSource>)	Returns the number of elements in a sequence.
Count<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the number of elements in the specified sequence that satisfies a condition.
DefaultIfEmpty<TSource>(IQueryable<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>(IQueryable<TSource>, TSource)	Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.
Distinct<TSource>(IQueryable<TSource>)	Returns distinct elements from a sequence by using the default equality comparer to compare values.
Distinct<TSource>(IQueryable<TSource>, IEqualityComparer<TSource>)	Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.
ElementAt<TSource>(IQueryable<TSource>, Int32)	Returns the element at a specified index in a sequence.
ElementAtOrDefault<TSource>(IQueryable<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>(IQueryable<TSource>, IEnumerable<TSource>)	Produces the set difference of two sequences by using the default equality comparer to compare values.
Except<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values.
First<TSource>(IQueryable<TSource>)	Returns the first element of a sequence.
First<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the first element of a sequence that satisfies a specified condition.
FirstOrDefault<TSource>(IQueryable<TSource>)	Returns the first element of a sequence, or a default value if the sequence contains no elements.
FirstOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the first element of a sequence that satisfies a specified condition or a default value if no such element is found.
GroupBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)	Groups the elements of a sequence according to a specified key selector function.
GroupBy<TSource,TKey>(IQueryable<TSource>, Expression<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>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<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>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TSource,TElement>>, IEqualityComparer<TKey>)	Groups the elements of a sequence and projects the elements for each group by using a specified function. Key values are compared by using a specified comparer.
GroupBy<TSource,TKey,TResult>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<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>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<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. Keys are compared by using a specified comparer.
GroupBy<TSource,TKey,TElement,TResult>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TSource,TElement>>, Expression<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>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TSource,TElement>>, Expression<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. Keys 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>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,IEnumerable<TInner>,TResult>>)	Correlates the elements of two sequences based on key equality and groups the results. The default equality comparer is used to compare keys.
GroupJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<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>(IQueryable<TSource>, IEnumerable<TSource>)	Produces the set intersection of two sequences by using the default equality comparer to compare values.
Intersect<TSource>(IQueryable<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>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<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>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<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>(IQueryable<TSource>)	Returns the last element in a sequence.
Last<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns the last element of a sequence that satisfies a specified condition.
LastOrDefault<TSource>(IQueryable<TSource>)	Returns the last element in a sequence, or a default value if the sequence contains no elements.
LastOrDefault<TSource>(IQueryable<TSource>, Expression<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>(IQueryable<TSource>)	Returns an Int64 that represents the total number of elements in a sequence.
LongCount<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns an Int64 that represents the number of elements in a sequence that satisfy a condition.
Max<TSource>(IQueryable<TSource>)	Returns the maximum value in a generic IQueryable<T>.
Max<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)	Invokes a projection function on each element of a generic IQueryable<T> and returns the maximum resulting value.
Min<TSource>(IQueryable<TSource>)	Returns the minimum value of a generic IQueryable<T>.
Min<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)	Invokes a projection function on each element of a generic IQueryable<T> and returns the minimum resulting value.
OfType<TResult>(IQueryable)	Filters the elements of an IQueryable based on a specified type.
OrderBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)	Sorts the elements of a sequence in ascending order according to a key.
OrderBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TKey>)	Sorts the elements of a sequence in ascending order by using a specified comparer.
OrderByDescending<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)	Sorts the elements of a sequence in descending order according to a key.
OrderByDescending<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TKey>)	Sorts the elements of a sequence in descending order by using a specified comparer.
Prepend<TSource>(IQueryable<TSource>, TSource)	Returns a new queryable sequence that contains the elements from `source` plus the specified `element` prepended at the beginning.
Reverse<TSource>(IQueryable<TSource>)	Inverts the order of the elements in a sequence.
Select<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)	Projects each element of a sequence into a new form.
Select<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,Int32,TResult>>)	Projects each element of a sequence into a new form by incorporating the element's index.
SelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,IEnumerable<TResult>>>)	Projects each element of a sequence to an IEnumerable<T> and combines the resulting sequences into one sequence.
SelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,Int32,IEnumerable<TResult>>>)	Projects each element of a sequence to an IEnumerable<T> and combines 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>(IQueryable<TSource>, Expression<Func<TSource,IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection,TResult>>)	Projects each element of a sequence to an IEnumerable<T> and invokes a result selector function on each element therein. The resulting values from each intermediate sequence are combined into a single, one-dimensional sequence and returned.
SelectMany<TSource,TCollection,TResult>(IQueryable<TSource>, Expression<Func<TSource,Int32,IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection,TResult>>)	Projects each element of a sequence to an IEnumerable<T> that incorporates the index of the source element that produced it. A result selector function is invoked on each element of each intermediate sequence, and the resulting values are combined into a single, one-dimensional sequence and returned.
SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)	Determines whether two sequences are equal by using the default equality comparer to compare elements.
SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Determines whether two sequences are equal by using a specified IEqualityComparer<T> to compare elements.
Single<TSource>(IQueryable<TSource>)	Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.
Single<TSource>(IQueryable<TSource>, Expression<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>(IQueryable<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>(IQueryable<TSource>, Expression<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>(IQueryable<TSource>, Int32)	Bypasses a specified number of elements in a sequence and then returns the remaining elements.
SkipLast<TSource>(IQueryable<TSource>, Int32)	Returns a new queryable sequence that contains the elements from `source` with the last `count` elements of the source queryable sequence omitted.
SkipWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
SkipWhile<TSource>(IQueryable<TSource>, Expression<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<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>)	Computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>)	Computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>)	Computes the sum of the sequence of Int32 values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>)	Computes the sum of the sequence of Int64 values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>)	Computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>)	Computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>)	Computes the sum of the sequence of nullable Int32 values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>)	Computes the sum of the sequence of nullable Int64 values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>)	Computes the sum of the sequence of nullable Single values that is obtained by invoking a projection function on each element of the input sequence.
Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>)	Computes the sum of the sequence of Single values that is obtained by invoking a projection function on each element of the input sequence.
Take<TSource>(IQueryable<TSource>, Int32)	Returns a specified number of contiguous elements from the start of a sequence.
TakeLast<TSource>(IQueryable<TSource>, Int32)	Returns a new queryable sequence that contains the last `count` elements from `source`.
TakeWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Returns elements from a sequence as long as a specified condition is true.
TakeWhile<TSource>(IQueryable<TSource>, Expression<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.
ThenBy<TSource,TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource,TKey>>)	Performs a subsequent ordering of the elements in a sequence in ascending order according to a key.
ThenBy<TSource,TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TKey>)	Performs a subsequent ordering of the elements in a sequence in ascending order by using a specified comparer.
ThenByDescending<TSource,TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource,TKey>>)	Performs a subsequent ordering of the elements in a sequence in descending order, according to a key.
ThenByDescending<TSource,TKey>(IOrderedQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TKey>)	Performs a subsequent ordering of the elements in a sequence in descending order by using a specified comparer.
Union<TSource>(IQueryable<TSource>, IEnumerable<TSource>)	Produces the set union of two sequences by using the default equality comparer.
Union<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)	Produces the set union of two sequences by using a specified IEqualityComparer<T>.
Where<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)	Filters a sequence of values based on a predicate.
Where<TSource>(IQueryable<TSource>, Expression<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>(IQueryable<TFirst>, IEnumerable<TSecond>)	Produces a sequence of tuples with elements from the two specified sequences.
Zip<TFirst,TSecond,TResult>(IQueryable<TFirst>, IEnumerable<TSecond>, Expression<Func<TFirst,TSecond,TResult>>)	Merges two sequences by using the specified predicate function.
SortBy<T>(IQueryable<T>, String)	Specifies a sort order.
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)	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.
DescendantNodes<T>(IEnumerable<T>)	Returns a collection of the descendant nodes of every document and element in the source collection.
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)	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.
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)	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>)	Returns a collection of nodes that contains all nodes in the source collection, sorted in document order.
Nodes<T>(IEnumerable<T>)	Returns a collection of the child nodes of every document and element in the source collection.
Remove<T>(IEnumerable<T>)	Removes every node in the source collection from its parent node.

Applies to