ImmutableArray<T> Struct

Definition

代表不可變的陣列,意即在建立該陣列之後,就無法加以變更。Represents an array that is immutable; meaning it cannot be changed once it is created.

NuGet 套件System.Collections.Immutable (關於固定集合及其安裝方法)NuGet package: System.Collections.Immutable (about immutable collections and how to install)

generic <typename T>
public value class ImmutableArray : IEquatable<System::Collections::Immutable::ImmutableArray<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, System::Collections::Immutable::IImmutableList<T>, System::Collections::IStructuralComparable, System::Collections::IStructuralEquatable
public struct ImmutableArray<T> : IEquatable<System.Collections.Immutable.ImmutableArray<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, System.Collections.Immutable.IImmutableList<T>, System.Collections.IStructuralComparable, System.Collections.IStructuralEquatable
type ImmutableArray<'T> = struct
    interface IReadOnlyList<'T>
    interface IReadOnlyCollection<'T>
    interface seq<'T>
    interface IEnumerable
    interface IList<'T>
    interface ICollection<'T>
    interface IImmutableList<'T>
    interface IList
    interface ICollection
type ImmutableArray<'T> = struct
    interface ICollection<'T>
    interface seq<'T>
    interface IEnumerable
    interface IList<'T>
    interface IReadOnlyCollection<'T>
    interface IReadOnlyList<'T>
    interface ICollection
    interface IList
    interface IImmutableList<'T>
Public Structure ImmutableArray(Of T)
Implements ICollection(Of T), IEnumerable(Of T), IEquatable(Of ImmutableArray(Of T)), IImmutableList(Of T), IList, IList(Of T), IReadOnlyCollection(Of T), IReadOnlyList(Of T), IStructuralComparable, IStructuralEquatable

Type Parameters

T

陣列所儲存的項目類型。The type of element stored by the array.

Inheritance
ImmutableArray<T>
Implements

Remarks

有不同的案例最適用于 ImmutableArray<T>,而其他則適用于 ImmutableList<T>There are different scenarios best for ImmutableArray<T> and others best for ImmutableList<T>.

使用不可變數組的原因:Reasons to use immutable array:

  • 更新資料很罕見,或元素數目相當小(少於16個專案)Updating the data is rare or the number of elements is quite small (less than 16 items)

  • 您必須能夠在效能關鍵區段中反復查看資料You need to be able to iterate over the data in performance critical sections

  • 您有許多不可變集合的實例,而且無法承受將資料保留在樹狀結構中You have many instances of immutable collections and you can't afford keeping the data in trees

使用不可變清單的原因:Reasons to use immutable list:

  • 資料的更新很常見,或元素數目不應該很小Updating the data is common or the number of elements isn't expected to be small

  • 更新集合比逐一查看內容更具效能關鍵Updating the collection is more performance critical than iterating the contents

下表摘要說明 ImmutableArray<T> 的效能特性The following table summarizes the performance characteristics of ImmutableArray<T>

運算Operation ImmutableArray<T> 複雜度ImmutableArray<T> Complexity ImmutableList<T> 複雜度ImmutableList<T> Complexity 註解Comments
ItemItem O (1)O(1) O (log n)O(log n) 直接索引至基礎陣列Directly index into the underlying array
Add()Add() O (n)O(n) O (log n)O(log n) 需要建立新的陣列Requires creating a new array

Fields

Empty

取得空的不可變陣列。Gets an empty immutable array.

Properties

IsDefault

取得值,指出這個陣列已宣告但未初始化。Gets a value indicating whether this array was declared but not initialized.

IsDefaultOrEmpty

取得值,指出這個 ImmutableArray<T> 是否為空的,或者尚未初始化。Gets a value indicating whether this ImmutableArray<T> is empty or is not initialized.

IsEmpty

取得值,指出這個 ImmutableArray<T> 是否為空的。Gets a value indicating whether this ImmutableArray<T> is empty.

Item[Int32]

取得不可變陣列中指定索引處的項目。Gets the element at the specified index in the immutable array.

Length

取得陣列中的項目數。Gets the number of elements in the array.

Methods

Add(T)

傳回已在結尾處加入指定項目的原始陣列複本。Returns a copy of the original array with the specified item added to the end.

AddRange(IEnumerable<T>)

傳回已在陣列結尾處加入指定項目的原始陣列複本。Returns a copy of the original array with the specified elements added to the end of the array.

AddRange(ImmutableArray<T>)

傳回已在陣列結尾處加入指定項目的原始陣列複本。Returns a copy of the original array with the specified elements added to the end of the array.

As<TOther>()

傳回新的不可變陣列,其中包含這個陣列中轉換為不同類型的項目。Returns a new immutable array that contains the elements of this array cast to a different type.

AsMemory()

在此不可變陣列上建立新的唯讀記憶體區域。Creates a new read-only memory region over this immutable array.

AsSpan()

在此不可變陣列上建立新的唯讀範圍。Creates a new read-only span over this immutable array.

CastArray<TOther>()

將基礎陣列轉換成 TOther 型別的陣列,以將 ImmutableArray<T> 結構的新執行個體初始化。Initializes a new instance of the ImmutableArray<T> struct by casting the underlying array to an array of type TOther.

CastUp<TDerived>(ImmutableArray<TDerived>)

根據現有執行個體的內容初始化新 ImmutableArray<T> 結構執行個體,允許 Covariant 靜態轉換,以便有效率地重複使用現有陣列。Initializes a new instance of the ImmutableArray<T> struct based on the contents of an existing instance, allowing a covariant static cast to efficiently reuse the existing array.

Clear()

傳回已移除所有項目的陣列。Returns an array with all the elements removed.

Contains(T)

判斷指定的項目是否存在於陣列中。Determines whether the specified item exists in the array.

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

從指定的開始索引開始,將這個陣列中的指定項目複製到指定的陣列。Copies the specified items in this array to the specified array at the specified starting index.

CopyTo(T[])

將這個陣列的內容複製到指定的陣列。Copies the contents of this array to the specified array.

CopyTo(T[], Int32)

從指定之目的索引開始,將這個陣列的內容複製到指定的陣列。Copies the contents of this array to the specified array starting at the specified destination index.

Equals(ImmutableArray<T>)

表示指定的物件是否等於這個陣列。Indicates whether specified array is equal to this array.

Equals(Object)

判斷這個陣列是否等於指定的物件。Determines if this array is equal to the specified object.

GetEnumerator()

傳回可逐一查看陣列內容的列舉程式。Returns an enumerator that iterates through the contents of the array.

GetHashCode()

傳回這個執行個體的雜湊碼。Returns a hash code for this instance.

IndexOf(T)

在陣列中搜尋指定的項目。Searches the array for the specified item.

IndexOf(T, Int32)

在陣列中搜尋指定的項目。Searches the array for the specified item.

IndexOf(T, Int32, IEqualityComparer<T>)

在陣列中搜尋指定的項目。Searches the array for the specified item.

IndexOf(T, Int32, Int32)

在陣列中搜尋指定的項目。Searches the array for the specified item.

IndexOf(T, Int32, Int32, IEqualityComparer<T>)

在陣列中搜尋指定的項目。Searches the array for the specified item.

Insert(Int32, T)

傳回已在指定位置插入指定值的新陣列。Returns a new array with the specified value inserted at the specified position.

InsertRange(Int32, IEnumerable<T>)

在指定的索引處插入指定的值。Inserts the specified values at the specified index.

InsertRange(Int32, ImmutableArray<T>)

在指定的索引處插入指定的值。Inserts the specified values at the specified index.

ItemRef(Int32)

取得唯讀清單中在指定 index 處元素的唯讀參考。Gets a read-only reference to the element at the specified index in the read-only list.

LastIndexOf(T)

從陣列結尾開始,在陣列中搜尋指定的項目。Searches the array for the specified item; starting at the end of the array.

LastIndexOf(T, Int32)

從陣列結尾開始,在陣列中搜尋指定的項目。Searches the array for the specified item; starting at the end of the array.

LastIndexOf(T, Int32, Int32)

從陣列結尾開始,在陣列中搜尋指定的項目。Searches the array for the specified item; starting at the end of the array.

LastIndexOf(T, Int32, Int32, IEqualityComparer<T>)

從陣列結尾開始,在陣列中搜尋指定的項目。Searches the array for the specified item; starting at the end of the array.

OfType<TResult>()

篩選這個陣列的項目,以取得可指派為指定類型的項目。Filters the elements of this array to those assignable to the specified type.

Remove(T)

傳回已從陣列中移除第一個出現之指定項目的陣列。Returns an array with the first occurrence of the specified element removed from the array. 如果找不到相符項目,則會傳回目前的陣列。If no match is found, the current array is returned.

Remove(T, IEqualityComparer<T>)

傳回已從陣列中移除第一個出現之指定項目的陣列。Returns an array with the first occurrence of the specified element removed from the array.

如果找不到相符項目,則會傳回目前的陣列。If no match is found, the current array is returned.

RemoveAll(Predicate<T>)

從陣列中移除符合指定條件的所有項目。Removes all the items from the array that meet the specified condition.

RemoveAt(Int32)

傳回已移除指定位置處之項目的陣列。Returns an array with the element at the specified position removed.

RemoveRange(IEnumerable<T>)

從這個陣列中移除指定的項目。Removes the specified items from this array.

RemoveRange(IEnumerable<T>, IEqualityComparer<T>)

從這個陣列中移除指定的項目。Removes the specified items from this array.

RemoveRange(ImmutableArray<T>)

從這個清單中移除指定的值。Removes the specified values from this list.

RemoveRange(ImmutableArray<T>, IEqualityComparer<T>)

從這個清單中移除指定的項目。Removes the specified items from this list.

RemoveRange(Int32, Int32)

傳回已移除指定位置處之項目的陣列。Returns an array with the elements at the specified position removed.

Replace(T, T)

尋找陣列中第一個等於指定值的項目,並使用指定的新值來取代該值。Finds the first element in the array equal to the specified value and replaces the value with the specified new value.

Replace(T, T, IEqualityComparer<T>)

尋找陣列中第一個等於指定值的項目,並使用指定的新值來取代該值。Finds the first element in the array equal to the specified value and replaces the value with the specified new value.

SetItem(Int32, T)

以指定的項目取代位於指定索引上的項目。Replaces the item at the specified index with the specified item.

Sort()

使用預設的比較子,來排序不可變陣列中的項目。Sorts the elements in the immutable array using the default comparer.

Sort(Comparison<T>)

使用指定的 Comparison<T> 來排序整個 ImmutableArray<T> 中的項目。Sorts the elements in the entire ImmutableArray<T> using the specified Comparison<T>.

Sort(IComparer<T>)

使用指定的比較子,來排序不可變陣列中的項目。Sorts the elements in the immutable array using the specified comparer.

Sort(Int32, Int32, IComparer<T>)

使用指定的比較子,來排序不可變陣列中指定的項目。Sorts the specified elements in the immutable array using the specified comparer.

ToBuilder()

建立可變動的陣列,其具有與此陣列相同的內容,而且能夠使用標準變動介面,有效率地跨多個作業進行變動。Creates a mutable array that has the same contents as this array and can be efficiently mutated across multiple operations using standard mutable interfaces.

Operators

Equality(ImmutableArray<T>, ImmutableArray<T>)

傳回值,這個值指出兩個陣列是否相等。Returns a value that indicates if two arrays are equal.

Equality(Nullable<ImmutableArray<T>>, Nullable<ImmutableArray<T>>)

傳回值,這個值指出兩個陣列是否相等。Returns a value that indicates if two arrays are equal.

Inequality(ImmutableArray<T>, ImmutableArray<T>)

傳回值,這個值指出兩個陣列是否不相等。Returns a value that indicates whether two arrays are not equal.

Inequality(Nullable<ImmutableArray<T>>, Nullable<ImmutableArray<T>>)

檢查兩個陣列間的不相等。Checks for inequality between two array.

Explicit Interface Implementations

ICollection.CopyTo(Array, Int32)

從指定的索引處開始,將這個陣列複製到其他陣列。Copies this array to another array starting at the specified index.

ICollection.Count

取得陣列的大小。Gets the size of the array.

ICollection.IsSynchronized

請參閱 ICollection 介面。See the ICollection interface. 因為不可變的集合為安全執行緒,所以一律傳回 trueAlways returns true since since immutable collections are thread-safe.

ICollection.SyncRoot

取得同步處理根項目。Gets the sync root.

ICollection<T>.Add(T)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

ICollection<T>.Clear()

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

ICollection<T>.Count

取得集合中的項目數目。Gets the number of items in the collection.

ICollection<T>.IsReadOnly

取得值,這個值指出這個執行個體是否為唯讀。Gets a value indicating whether this instance is read only.

ICollection<T>.Remove(T)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IEnumerable.GetEnumerator()

傳回可逐一查看不可變陣列的列舉程式。Returns an enumerator that iterates through the immutable array.

IEnumerable<T>.GetEnumerator()

傳回可逐一查看陣列的列舉程式。Returns an enumerator that iterates through the array.

IImmutableList<T>.Add(T)

傳回已在結尾處加入指定項目的原始陣列複本。Returns a copy of the original array with the specified item added to the end.

IImmutableList<T>.AddRange(IEnumerable<T>)

傳回已在陣列結尾處加入指定項目的原始陣列複本。Returns a copy of the original array with the specified elements added to the end of the array.

IImmutableList<T>.Clear()

傳回已移除所有項目的陣列。Returns an array with all the elements removed.

IImmutableList<T>.Insert(Int32, T)

傳回已在指定位置插入指定值的新陣列。Returns a new array with the specified value inserted at the specified position.

IImmutableList<T>.InsertRange(Int32, IEnumerable<T>)

在指定的索引處插入指定的值。Inserts the specified values at the specified index.

IImmutableList<T>.Remove(T, IEqualityComparer<T>)

傳回已從陣列中移除第一個出現之指定項目的陣列,如果找不到相符項目,則會傳回目前的陣列。Returns an array with the first occurrence of the specified element removed from the array; if no match is found, the current array is returned.

IImmutableList<T>.RemoveAll(Predicate<T>)

從陣列中移除符合指定條件的所有項目。Removes all the items from the array that meet the specified condition.

IImmutableList<T>.RemoveAt(Int32)

傳回已移除指定位置處之項目的陣列。Returns an array with the element at the specified position removed.

IImmutableList<T>.RemoveRange(IEnumerable<T>, IEqualityComparer<T>)

從這個陣列中移除指定的項目。Removes the specified items from this array.

IImmutableList<T>.RemoveRange(Int32, Int32)

傳回已移除指定位置處之項目的陣列。Returns an array with the elements at the specified position removed.

IImmutableList<T>.Replace(T, T, IEqualityComparer<T>)

尋找陣列中第一個等於指定值的項目,並使用指定的新值來取代該值。Finds the first element in the array equal to the specified value and replaces the value with the specified new value.

IImmutableList<T>.SetItem(Int32, T)

以指定的項目取代位於指定索引上的項目。Replaces the item at the specified index with the specified item.

IList.Add(Object)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IList.Clear()

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IList.Contains(Object)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IList.IndexOf(Object)

取得指定索引處的值。Gets the value at the specified index.

IList.Insert(Int32, Object)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IList.IsFixedSize

取得值,指出此執行個體是否有固定的大小。Gets a value indicating whether this instance is fixed size.

IList.IsReadOnly

取得值,這個值指出這個執行個體是否為唯讀。Gets a value indicating whether this instance is read only.

IList.Item[Int32]

取得或設定在指定索引處的 ObjectGets or sets the Object at the specified index.

IList.Remove(Object)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IList.RemoveAt(Int32)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IList<T>.Insert(Int32, T)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IList<T>.Item[Int32]

取得或設定唯讀清單中指定索引處的項目。Gets or sets the element at the specified index in the read-only list.

IList<T>.RemoveAt(Int32)

在所有情況下都會擲回 NotSupportedExceptionThrows NotSupportedException in all cases.

IReadOnlyCollection<T>.Count

取得集合中的項目數目。Gets the number of items in the collection.

IReadOnlyList<T>.Item[Int32]

取得位在指定索引處的元素。Gets the element at the specified index.

IStructuralComparable.CompareTo(Object, IComparer)

判斷目前的集合項目在排序次序中位於另一個項目之前、相同位置或之後。Determines whether the current collection element precedes, occurs in the same position as, or follows another element in the sort order.

IStructuralEquatable.Equals(Object, IEqualityComparer)

判斷這個陣列在結構上是否等於指定的陣列。Determines whether this array is structurally equal to the specified array.

IStructuralEquatable.GetHashCode(IEqualityComparer)

傳回目前執行個體的雜湊碼。Returns a hash code for the current instance.

Extension Methods

BinarySearch<T>(ImmutableArray<T>, T)

使用預設的比較子搜尋指定項目已排序的不可變陣列,並在找到時,傳回該項目以零為起始的索引。Searches the sorted immutable array for a specified element using the default comparer and returns the zero-based index of the element, if it's found.

BinarySearch<T>(ImmutableArray<T>, T, IComparer<T>)

搜尋指定項目已排序的不可變陣列,並在找到時,傳回該項目以零為起始的索引。Searches a sorted immutable array for a specified element and returns the zero-based index of the element, if it's found.

BinarySearch<T>(ImmutableArray<T>, Int32, Int32, T)

搜尋指定項目已排序的不可變陣列,並在找到時,傳回該項目以零為起始的索引。Searches a sorted immutable array for a specified element and returns the zero-based index of the element, if it's found.

BinarySearch<T>(ImmutableArray<T>, Int32, Int32, T, IComparer<T>)

搜尋指定項目已排序的不可變陣列,並傳回該項目以零為起始的索引。Searches a sorted immutable array for a specified element and returns the zero-based index of the element.

ToImmutableArray<TSource>(IEnumerable<TSource>)

從指定的集合建立不可變的陣列。Creates an immutable array from the specified collection.

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

從現有的項目集合建構不可變的字典,將轉換函式套用至來源索引鍵。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>)

根據序列的某些轉換來建構不可變的字典。Constructs an immutable dictionary based on some transformation of a sequence.

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

列舉及轉換序列,並產生其內容的不可變字典。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>)

列舉及轉換序列,並使用指定的索引鍵比較子產生其內容的不可變字典。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>)

列舉及轉換序列,並使用指定的索引鍵與值比較子產生其內容的不可變字典。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>)

列舉序列,並產生其內容之不可變雜湊集。Enumerates a sequence and produces an immutable hash set of its contents.

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

列舉序列、產生其內容之不可變雜湊集,且針對集合類型使用指定的相等比較子。Enumerates a sequence, produces an immutable hash set of its contents, and uses the specified equality comparer for the set type.

IndexOf<T>(IImmutableList<T>, T)

搜尋指定的物件,並傳回清單中第一個出現項目以零為起始的索引。Searches for the specified object and returns the zero-based index of the first occurrence within the list.

IndexOf<T>(IImmutableList<T>, T, IEqualityComparer<T>)

搜尋指定的物件,並傳回清單中第一個出現項目以零為起始的索引。Searches for the specified object and returns the zero-based index of the first occurrence within the list.

IndexOf<T>(IImmutableList<T>, T, Int32)

搜尋指定的物件,並傳回不可變的清單中,從指定索引開始到最後一個項目的項目範圍內,第一個出現項目以零為起始的索引。Searches for the specified object and returns the zero-based index of the first occurrence within the range of elements in the immutable list that extends from the specified index to the last element.

IndexOf<T>(IImmutableList<T>, T, Int32, Int32)

搜尋指定的物件,並傳回不可變的清單中,從指定索引開始到最後一個項目的項目範圍內,第一個出現項目以零為起始的索引。Searches for the specified object and returns the zero-based index of the first occurrence within the range of elements in the immutable list that extends from the specified index to the last element.

LastIndexOf<T>(IImmutableList<T>, T)

搜尋指定的物件,並傳回整個不可變的清單中最後一個出現項目以零為起始的索引。Searches for the specified object and returns the zero-based index of the last occurrence within the entire immutable list.

LastIndexOf<T>(IImmutableList<T>, T, IEqualityComparer<T>)

搜尋指定的物件,並傳回整個不可變的清單中最後一個出現項目以零為起始的索引。Searches for the specified object and returns the zero-based index of the last occurrence within the entire immutable list.

LastIndexOf<T>(IImmutableList<T>, T, Int32)

搜尋指定的物件,並傳回不可變的清單中,從第一個項目開始到指定索引的項目範圍內,最後一個出現項目以零為起始的索引。Searches for the specified object and returns the zero-based index of the last occurrence within the range of elements in the immutable list that extends from the first element to the specified index.

LastIndexOf<T>(IImmutableList<T>, T, Int32, Int32)

搜尋指定的物件,並傳回不可變的清單中,從第一個項目開始到指定索引的項目範圍內,最後一個出現項目以零為起始的索引。Searches for the specified object and returns the zero-based index of the last occurrence within the range of elements in the immutable list that extends from the first element to the specified index.

Remove<T>(IImmutableList<T>, T)

從這個清單中移除指定的值。Removes the specified value from this list.

RemoveRange<T>(IImmutableList<T>, IEnumerable<T>)

從這個清單中移除指定的值。Removes the specified values from this list.

Replace<T>(IImmutableList<T>, T, T)

使用指定的項目,來取代清單中第一個相等的項目。Replaces the first equal element in the list with the specified element.

ToImmutableList<TSource>(IEnumerable<TSource>)

列舉序列,並產生其內容的不可變清單。Enumerates a sequence and produces an immutable list of its contents.

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

列舉及轉換序列,並產生不可變的排序字典作為內容。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>)

列舉及轉換序列,並使用指定的索引鍵比較子產生不可變的排序字典作為內容。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>)

列舉及轉換序列,並使用指定的索引鍵與值比較子產生不可變的排序字典作為內容。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>)

列舉序列,並產生其內容的不可變排序資料集。Enumerates a sequence and produces an immutable sorted set of its contents.

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

列舉序列、產生其內容的不可變排序資料集,並使用指定的比較子。Enumerates a sequence, produces an immutable sorted set of its contents, and uses the specified comparer.

CopyToDataTable<T>(IEnumerable<T>)

根據輸入 DataTable 物件 (其中泛型參數 TDataRow) 傳回包含 IEnumerable<T> 物件複本的 DataRowReturns 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)

根據輸入 DataRow 物件 (其中泛型參數 TDataTable),將 IEnumerable<T> 物件複製到指定的 DataRowCopies 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)

根據輸入 DataRow 物件 (其中泛型參數 TDataTable),將 IEnumerable<T> 物件複製到指定的 DataRowCopies 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>)

將累加函式套用到序列上。Applies an accumulator function over a sequence.

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

將累加函式套用到序列上。Applies an accumulator function over a sequence. 使用指定的初始值做為初始累加值。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>)

將累加函式套用到序列上。Applies an accumulator function over a sequence. 使用指定的值做為初始累加值,並使用指定的函式來選取結果值。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>)

判斷序列的所有項目是否全都符合條件。Determines whether all elements of a sequence satisfy a condition.

Any<TSource>(IEnumerable<TSource>)

判斷序列是否包含任何項目。Determines whether a sequence contains any elements.

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

判斷序列的任何項目是否符合條件。Determines whether any element of a sequence satisfies a condition.

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

將值附加在序列結尾。Appends a value to the end of the sequence.

AsEnumerable<TSource>(IEnumerable<TSource>)

傳回 IEnumerable<T> 類型的輸入。Returns the input typed as IEnumerable<T>.

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

計算在輸入序列中各項目上叫用轉換函式後所取得之 Decimal 值序列的平均值。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>)

計算在輸入序列中各項目上叫用轉換函式後所取得之 Double 值序列的平均值。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>)

計算在輸入序列中各項目上叫用轉換函式後所取得之 Int32 值序列的平均值。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>)

計算在輸入序列中各項目上叫用轉換函式後所取得之 Int64 值序列的平均值。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Decimal 值的平均值。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Double 值的平均值。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Int32 值的平均值。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Int64 值的平均值。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Single 值的平均值。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>)

計算在輸入序列中各項目上叫用轉換函式後所取得之 Single 值序列的平均值。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)

IEnumerable 的項目轉換成指定的型別。Casts the elements of an IEnumerable to the specified type.

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

串連兩個序列。Concatenates two sequences.

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

使用預設的相等比較子 (Comparer) 來判斷序列是否包含指定的項目。Determines whether a sequence contains a specified element by using the default equality comparer.

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

使用指定的 IEqualityComparer<T> 來判斷序列是否包含指定的項目。Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.

Count<TSource>(IEnumerable<TSource>)

傳回序列中的項目數。Returns the number of elements in a sequence.

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

傳回數字,代表指定之序列中符合條件的項目數目。Returns a number that represents how many elements in the specified sequence satisfy a condition.

DefaultIfEmpty<TSource>(IEnumerable<TSource>)

傳回指定之序列的項目;如果序列是空的,則傳回單一集合中型別參數的預設值。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)

傳回指定之序列的項目;如果序列是空的,則傳回單一集合中型別參數的預設值。Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.

Distinct<TSource>(IEnumerable<TSource>)

使用預設的相等比較子來比較值,以便從序列傳回獨特的項目。Returns distinct elements from a sequence by using the default equality comparer to compare values.

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

使用指定的 IEqualityComparer<T> 來比較值,以便從序列傳回獨特的項目。Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.

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

傳回位於序列中指定索引處的項目。Returns the element at a specified index in a sequence.

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

傳回位於序列中指定索引處的元素;如果索引超出範圍,則傳回預設值。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>)

使用預設相等比較子來比較值,以便產生兩個序列的差異。Produces the set difference of two sequences by using the default equality comparer to compare values.

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

使用指定的 IEqualityComparer<T> 來比較值,以便產生兩個序列的差異。Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values.

First<TSource>(IEnumerable<TSource>)

傳回序列的第一個項目。Returns the first element of a sequence.

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

傳回序列中符合指定條件的第一個元素。Returns the first element in a sequence that satisfies a specified condition.

FirstOrDefault<TSource>(IEnumerable<TSource>)

傳回序列的第一個元素;如果序列中沒有包含任何元素,則傳回預設值。Returns the first element of a sequence, or a default value if the sequence contains no elements.

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

傳回序列中符合條件的第一個元素;如果找不到這類元素,則傳回預設值。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>)

依據指定的索引鍵選擇器函式來群組序列的項目。Groups the elements of a sequence according to a specified key selector function.

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

依據指定的索引鍵選取器函式來群組序列的項目,並使用指定的比較子來比較索引鍵。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>)

依據指定的索引鍵選取器函式來群組序列的項目,並使用指定的函式來投影每個群組的項目。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>)

依據索引鍵選取器函式來群組序列中的項目。Groups the elements of a sequence according to a key selector function. 索引鍵是使用比較子來進行比較,而每個群組的項目都是利用指定的函式進行投影。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>)

依據指定的索引鍵選取器函式來群組序列的項目,並從每個群組及其索引鍵建立結果值。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>)

依據指定的索引鍵選取器函式來群組序列的項目,並從每個群組及其索引鍵建立結果值。Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. 索引鍵是使用指定的比較子來進行比較。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>)

依據指定的索引鍵選取器函式來群組序列的項目,並從每個群組及其索引鍵建立結果值。Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. 每個群組的項目都是利用指定的函式進行投影。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>)

依據指定的索引鍵選取器函式來群組序列的項目,並從每個群組及其索引鍵建立結果值。Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. 索引鍵值是使用指定的比較子來進行比較,而每個群組的項目則都是利用指定的函式進行投影。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>)

根據索引鍵相等與否,將兩個序列的項目相互關聯,並群組產生的結果。Correlates the elements of two sequences based on equality of keys and groups the results. 預設的相等比較子是用於比較索引鍵。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>)

根據索引鍵相等與否,將兩個序列的項目相互關聯,並群組產生的結果。Correlates the elements of two sequences based on key equality and groups the results. 指定的 IEqualityComparer<T> 是用於比較索引鍵。A specified IEqualityComparer<T> is used to compare keys.

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

使用預設相等比較子來比較值,以便產生兩個序列的交集。Produces the set intersection of two sequences by using the default equality comparer to compare values.

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

使用指定的 IEqualityComparer<T> 來比較值,以便產生兩個序列的交集。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>)

根據相符索引鍵,將兩個序列的項目相互關聯。Correlates the elements of two sequences based on matching keys. 預設的相等比較子是用於比較索引鍵。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>)

根據相符索引鍵,將兩個序列的項目相互關聯。Correlates the elements of two sequences based on matching keys. 指定的 IEqualityComparer<T> 是用於比較索引鍵。A specified IEqualityComparer<T> is used to compare keys.

Last<TSource>(IEnumerable<TSource>)

傳回序列的最後一個項目。Returns the last element of a sequence.

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

傳回序列中符合指定之條件的最後一個元素。Returns the last element of a sequence that satisfies a specified condition.

LastOrDefault<TSource>(IEnumerable<TSource>)

傳回序列的最後一個元素;如果序列中沒有包含任何元素,則傳回預設值。Returns the last element of a sequence, or a default value if the sequence contains no elements.

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

傳回序列中符合條件的最後一個元素;如果找不到這類元素,則傳回預設值。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>)

傳回代表序列中項目總數的 Int64Returns an Int64 that represents the total number of elements in a sequence.

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

傳回 Int64,其代表序列中符合條件的項目數目。Returns an Int64 that represents how many elements in a sequence satisfy a condition.

Max<TSource>(IEnumerable<TSource>)

傳回泛型序列中的最大值。Returns the maximum value in a generic sequence.

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

在序列的每個項目上叫用轉換函式,並傳回最大的 Decimal 值。Invokes a transform function on each element of a sequence and returns the maximum Decimal value.

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

在序列的每個項目上叫用轉換函式,並傳回最大的 Double 值。Invokes a transform function on each element of a sequence and returns the maximum Double value.

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

在序列的每個項目上叫用轉換函式,並傳回最大的 Int32 值。Invokes a transform function on each element of a sequence and returns the maximum Int32 value.

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

在序列的每個項目上叫用轉換函式,並傳回最大的 Int64 值。Invokes a transform function on each element of a sequence and returns the maximum Int64 value.

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

在序列的每個項目上叫用轉換函式,並傳回最大的可為 Null 之 Decimal 值。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>>)

在序列的每個項目上叫用轉換函式,並傳回最大的可為 Null 之 Double 值。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>>)

在序列的每個項目上叫用轉換函式,並傳回最大的可為 Null 之 Int32 值。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>>)

在序列的每個項目上叫用轉換函式,並傳回最大的可為 Null 之 Int64 值。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>>)

在序列的每個項目上叫用轉換函式,並傳回最大的可為 Null 之 Single 值。Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.

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

在序列的每個項目上叫用轉換函式,並傳回最大的 Single 值。Invokes a transform function on each element of a sequence and returns the maximum Single value.

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

在泛型序列的每個項目上叫用轉換函式,並傳回最大的結果值。Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.

Min<TSource>(IEnumerable<TSource>)

傳回泛型序列中的最小值。Returns the minimum value in a generic sequence.

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

在序列的每個項目上叫用轉換函式,並傳回最小的 Decimal 值。Invokes a transform function on each element of a sequence and returns the minimum Decimal value.

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

在序列的每個項目上叫用轉換函式,並傳回最小的 Double 值。Invokes a transform function on each element of a sequence and returns the minimum Double value.

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

在序列的每個項目上叫用轉換函式,並傳回最小的 Int32 值。Invokes a transform function on each element of a sequence and returns the minimum Int32 value.

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

在序列的每個項目上叫用轉換函式,並傳回最小的 Int64 值。Invokes a transform function on each element of a sequence and returns the minimum Int64 value.

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

在序列的每個項目上叫用轉換函式,並傳回最小的可為 Null 之 Decimal 值。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>>)

在序列的每個項目上叫用轉換函式,並傳回最小的可為 Null 之 Double 值。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>>)

在序列的每個項目上叫用轉換函式,並傳回最小的可為 Null 之 Int32 值。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>>)

在序列的每個項目上叫用轉換函式,並傳回最小的可為 Null 之 Int64 值。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>>)

在序列的每個項目上叫用轉換函式,並傳回最小的可為 Null 之 Single 值。Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.

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

在序列的每個項目上叫用轉換函式,並傳回最小的 Single 值。Invokes a transform function on each element of a sequence and returns the minimum Single value.

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

在泛型序列的每個項目上叫用轉換函式,並傳回最小的結果值。Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.

OfType<TResult>(IEnumerable)

根據指定的型別來篩選 IEnumerable 的項目。Filters the elements of an IEnumerable based on a specified type.

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

依據索引鍵,按遞增順序排序序列中的項目。Sorts the elements of a sequence in ascending order according to a key.

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

使用指定的比較子,依遞增順序排序序列中的項目。Sorts the elements of a sequence in ascending order by using a specified comparer.

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

依據索引鍵,按遞減順序排序序列中的項目。Sorts the elements of a sequence in descending order according to a key.

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

使用指定的比較子,依遞減順序排序序列中的項目。Sorts the elements of a sequence in descending order by using a specified comparer.

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

將值新增至序列的開頭。Adds a value to the beginning of the sequence.

Reverse<TSource>(IEnumerable<TSource>)

反轉序列中項目的排序方向。Inverts the order of the elements in a sequence.

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

將序列的每個元素規劃成一個新的表單。Projects each element of a sequence into a new form.

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

透過加入項目的索引,將序列的每個項目投影成新的表單。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>>)

將序列的每個項目都投影成 IEnumerable<T>,並將產生的序列簡化成單一序列。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>>)

將序列的每個項目都投影成 IEnumerable<T>,並將產生的序列簡化成單一序列。Projects each element of a sequence to an IEnumerable<T>, and flattens the resulting sequences into one sequence. 各來源項目的索引是在該項目的投影表單中使用。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>)

將序列的每個項目投影為 IEnumerable<T>、將產生的序列簡化成單一序列,並對其中的每個項目叫用結果選取器函式。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>)

將序列的每個項目投影為 IEnumerable<T>、將產生的序列簡化成單一序列,並對其中的每個項目叫用結果選取器函式。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. 各來源項目的索引是在該項目的中繼投影表單中使用。The index of each source element is used in the intermediate projected form of that element.

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

使用項目之型別的預設相等比較子來比較項目,以判斷兩個序列是否相等。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>)

使用指定的 IEqualityComparer<T> 來比較項目,以判斷兩個序列是否相等。Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>.

Single<TSource>(IEnumerable<TSource>)

傳回序列的唯一一個元素,如果序列中不是正好一個元素,則擲回例外狀況。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>)

傳回序列中符合指定之條件的唯一一個元素,如果有一個以上這類元素,則擲回例外狀況。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>)

傳回序列的唯一一個項目,如果序列是空白,則為預設值,如果序列中有一個以上的項目,這個方法就會擲回例外狀況。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>)

傳回序列中符合指定之條件的唯一一個元素,如果沒有這類元素,則為預設值,如果有一個以上的元素符合條件,這個方法就會擲回例外狀況。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)

略過序列中指定的項目數目,然後傳回其餘項目。Bypasses a specified number of elements in a sequence and then returns the remaining elements.

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

傳回新的可列舉集合,其包含已省略來源集合最後 count 元素的所有 source 元素。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>)

只要指定的條件為 true,便略過序列中的項目,然後傳回其餘項目。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>)

只要指定的條件為 true,便略過序列中的項目,然後傳回其餘項目。Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. 項目的索引是用於述詞功能的邏輯中。The element's index is used in the logic of the predicate function.

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

計算在輸入序列中各項目上叫用轉換函式後所取得之 Decimal 值序列的總和。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>)

計算在輸入序列中各項目上叫用轉換函式後所取得之 Double 值序列的總和。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>)

計算在輸入序列中各項目上叫用轉換函式後所取得之 Int32 值序列的總和。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>)

計算在輸入序列中各項目上叫用轉換函式後所取得之 Int64 值序列的總和。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Decimal 值的總和。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Double 值的總和。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Int32 值的總和。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Int64 值的總和。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>>)

計算在輸入序列中各項目上叫用轉換函式後所取得可為 Null 之 Single 值的總和。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>)

計算在輸入序列中各項目上叫用轉換函式後所取得之 Single 值序列的總和。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)

從序列開頭傳回指定的連續項目數目。Returns a specified number of contiguous elements from the start of a sequence.

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

傳回新的可列舉集合,其包含 source 的最後 count 元素。Returns a new enumerable collection that contains the last count elements from source.

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

只要指定的條件為 true,就會傳回序列中的項目。Returns elements from a sequence as long as a specified condition is true.

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

只要指定的條件為 true,就會傳回序列中的項目。Returns elements from a sequence as long as a specified condition is true. 項目的索引是用於述詞功能的邏輯中。The element's index is used in the logic of the predicate function.

ToArray<TSource>(IEnumerable<TSource>)

IEnumerable<T> 建立陣列。Creates an array from a IEnumerable<T>.

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

根據指定的索引鍵選擇器函式,從 Dictionary<TKey,TValue> 建立 IEnumerable<T>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>)

根據指定的索引鍵選取器函式和索引鍵比較子,從 Dictionary<TKey,TValue> 建立 IEnumerable<T>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>)

根據指定的索引鍵選取器和項目選取器函式,從 Dictionary<TKey,TValue> 建立 IEnumerable<T>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>)

根據指定的索引鍵選取器函式、比較子和項目選取器函式,從 Dictionary<TKey,TValue> 建立 IEnumerable<T>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>)

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

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

使用比較金鑰的 comparerIEnumerable<T> 建立 HashSet<T>Creates a HashSet<T> from an IEnumerable<T> using the comparer to compare keys.

ToList<TSource>(IEnumerable<TSource>)

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

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

根據指定的索引鍵選擇器函式,從 Lookup<TKey,TElement> 建立 IEnumerable<T>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>)

根據指定的索引鍵選取器函式和索引鍵比較子,從 Lookup<TKey,TElement> 建立 IEnumerable<T>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>)

根據指定的索引鍵選取器和項目選取器函式,從 Lookup<TKey,TElement> 建立 IEnumerable<T>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>)

根據指定的索引鍵選取器函式、比較子和項目選取器函式,從 Lookup<TKey,TElement> 建立 IEnumerable<T>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>)

使用預設相等比較值來比較值,以便產生兩個序列的集合等位。Produces the set union of two sequences by using the default equality comparer.

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

使用指定的 IEqualityComparer<T> 產生兩個序列的集合等位。Produces the set union of two sequences by using a specified IEqualityComparer<T>.

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

根據述詞來篩選值序列。Filters a sequence of values based on a predicate.

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

根據述詞來篩選值序列。Filters a sequence of values based on a predicate. 述詞函式的邏輯中使用各項目的索引。Each element's index is used in the logic of the predicate function.

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

從兩個指定序列中的元素產生一系列元組。Produces a sequence of tuples with elements from the two specified sequences.

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

將指定的函式套用至兩個序列的對應項目,產生結果的序列。Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.

Aggregate<T>(ImmutableArray<T>, Func<T,T,T>)

以累加的方式套用函式到序列的元素。Applies a function to a sequence of elements in a cumulative way.

Aggregate<TAccumulate,T>(ImmutableArray<T>, TAccumulate, Func<TAccumulate,T,TAccumulate>)

以累加的方式套用函式到序列的元素。Applies a function to a sequence of elements in a cumulative way.

Aggregate<TAccumulate,TResult,T>(ImmutableArray<T>, TAccumulate, Func<TAccumulate,T,TAccumulate>, Func<TAccumulate,TResult>)

以累加的方式套用函式到序列的元素。Applies a function to a sequence of elements in a cumulative way.

All<T>(ImmutableArray<T>, Func<T,Boolean>)

取得值,該值指示此陣列中的所有元素是否符合指定條件。Gets a value indicating whether all elements in this array match a given condition.

Any<T>(ImmutableArray<T>)

取得值,該值指示此陣列中是否包含任何元素。Gets a value indicating whether the array contains any elements.

Any<T>(ImmutableArray<T>, Func<T,Boolean>)

取得值,該值指示此陣列中是否包含任何符合指定條件的元素。Gets a value indicating whether the array contains any elements that match a specified condition.

ElementAt<T>(ImmutableArray<T>, Int32)

傳回位於陣列中指定索引處的元素。Returns the element at a specified index in the array.

ElementAtOrDefault<T>(ImmutableArray<T>, Int32)

傳回位於序列中指定索引處的元素;如果索引超出範圍,則傳回預設值。Returns the element at a specified index in a sequence or a default value if the index is out of range.

First<T>(ImmutableArray<T>)

傳回陣列中第一個元素。Returns the first element in an array.

First<T>(ImmutableArray<T>, Func<T,Boolean>)

傳回序列中符合指定條件的第一個元素。Returns the first element in a sequence that satisfies a specified condition.

FirstOrDefault<T>(ImmutableArray<T>)

傳回序列的第一個元素;如果序列中沒有包含任何元素,則傳回預設值。Returns the first element of a sequence, or a default value if the sequence contains no elements.

FirstOrDefault<T>(ImmutableArray<T>, Func<T,Boolean>)

傳回序列中符合條件的第一個元素;如果找不到這類元素,則傳回預設值。Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.

Last<T>(ImmutableArray<T>)

傳回陣列的最後一個元素。Returns the last element of the array.

Last<T>(ImmutableArray<T>, Func<T,Boolean>)

傳回序列中符合指定之條件的最後一個元素。Returns the last element of a sequence that satisfies a specified condition.

LastOrDefault<T>(ImmutableArray<T>)

傳回序列的最後一個元素;如果序列中沒有包含任何元素,則傳回預設值。Returns the last element of a sequence, or a default value if the sequence contains no elements.

LastOrDefault<T>(ImmutableArray<T>, Func<T,Boolean>)

傳回序列中符合條件的最後一個元素;如果找不到這類元素,則傳回預設值。Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.

Select<T,TResult>(ImmutableArray<T>, Func<T,TResult>)

將序列的每個元素規劃成一個新的表單。Projects each element of a sequence into a new form.

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

將序列的每個項目投影為 IEnumerable<T>、將產生的序列簡化成單一序列,並對其中的每個項目叫用結果選取器函式。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.

SequenceEqual<TDerived,TBase>(ImmutableArray<TBase>, IEnumerable<TDerived>, IEqualityComparer<TBase>)

根據相等比較子,判斷兩個序列是否相等。Determines whether two sequences are equal according to an equality comparer.

SequenceEqual<TDerived,TBase>(ImmutableArray<TBase>, ImmutableArray<TDerived>, IEqualityComparer<TBase>)

根據相等比較子,判斷兩個序列是否相等。Determines whether two sequences are equal according to an equality comparer.

SequenceEqual<TDerived,TBase>(ImmutableArray<TBase>, ImmutableArray<TDerived>, Func<TBase,TBase,Boolean>)

根據相等比較子,判斷兩個序列是否相等。Determines whether two sequences are equal according to an equality comparer.

Single<T>(ImmutableArray<T>)

傳回序列的唯一一個元素,如果序列中不是正好一個元素,則擲回例外狀況。Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.

Single<T>(ImmutableArray<T>, Func<T,Boolean>)

傳回序列中符合指定之條件的唯一一個元素,如果有一個以上這類元素,則擲回例外狀況。Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.

SingleOrDefault<T>(ImmutableArray<T>)

傳回陣列的唯一一個元素,如果序列是空白,則為預設值,如果序列中有一個以上的元素,這個方法就會擲回例外狀況。Returns the only element of the array, 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<T>(ImmutableArray<T>, Func<T,Boolean>)

傳回序列中符合指定之條件的唯一一個元素,如果沒有這類元素,則為預設值,如果有一個以上的元素符合條件,這個方法就會擲回例外狀況。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.

ToArray<T>(ImmutableArray<T>)

將此陣列的內容複製到可變動的陣列。Copies the contents of this array to a mutable array.

ToDictionary<TKey,T>(ImmutableArray<T>, Func<T,TKey>)

根據此陣列的內容建立字典。Creates a dictionary based on the contents of this array.

ToDictionary<TKey,T>(ImmutableArray<T>, Func<T,TKey>, IEqualityComparer<TKey>)

根據此陣列的內容建立字典。Creates a dictionary based on the contents of this array.

ToDictionary<TKey,TElement,T>(ImmutableArray<T>, Func<T,TKey>, Func<T,TElement>)

根據此陣列的內容建立字典。Creates a dictionary based on the contents of this array.

ToDictionary<TKey,TElement,T>(ImmutableArray<T>, Func<T,TKey>, Func<T,TElement>, IEqualityComparer<TKey>)

根據此陣列的內容建立字典。Creates a dictionary based on the contents of this array.

Where<T>(ImmutableArray<T>, Func<T,Boolean>)

根據述詞來篩選值序列。Filters a sequence of values based on a predicate.

AsParallel(IEnumerable)

啟用查詢的平行化作業。Enables parallelization of a query.

AsParallel<TSource>(IEnumerable<TSource>)

啟用查詢的平行化作業。Enables parallelization of a query.

AsQueryable(IEnumerable)

IEnumerable 轉換成 IQueryableConverts an IEnumerable to an IQueryable.

AsQueryable<TElement>(IEnumerable<TElement>)

將泛型 IEnumerable<T> 轉換成泛型 IQueryable<T>Converts a generic IEnumerable<T> to a generic IQueryable<T>.

Ancestors<T>(IEnumerable<T>)

傳回包含來源集合中每個節點祖系的項目集合。Returns a collection of elements that contains the ancestors of every node in the source collection.

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

傳回包含來源集合中每個節點祖系的已篩選項目集合。Returns a filtered collection of elements that contains the ancestors of every node in the source collection. 集合中只會包含具有相符之 XName 的項目。Only elements that have a matching XName are included in the collection.

DescendantNodes<T>(IEnumerable<T>)

傳回來源集合中每個文件和項目之子代節點的集合。Returns a collection of the descendant nodes of every document and element in the source collection.

Descendants<T>(IEnumerable<T>)

傳回包含來源集合中每個項目和文件之子代項目的項目集合。Returns a collection of elements that contains the descendant elements of every element and document in the source collection.

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

傳回已篩選的項目集合,其中包含來源集合中每個項目和文件的子代項目。Returns a filtered collection of elements that contains the descendant elements of every element and document in the source collection. 集合中只會包含具有相符之 XName 的項目。Only elements that have a matching XName are included in the collection.

Elements<T>(IEnumerable<T>)

傳回來源集合中每個項目和文件的子項目集合。Returns a collection of the child elements of every element and document in the source collection.

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

傳回來源集合中每個項目和文件的已篩選子項目集合。Returns a filtered collection of the child elements of every element and document in the source collection. 集合中只會包含具有相符之 XName 的項目。Only elements that have a matching XName are included in the collection.

InDocumentOrder<T>(IEnumerable<T>)

傳回包含來源集合中所有節點的節點集合,依據文件順序來排序。Returns a collection of nodes that contains all nodes in the source collection, sorted in document order.

Nodes<T>(IEnumerable<T>)

傳回來源集合中每個文件和項目的子節點集合。Returns a collection of the child nodes of every document and element in the source collection.

Remove<T>(IEnumerable<T>)

在來源集合中,從每一個節點的父節點移除這些節點。Removes every node in the source collection from its parent node.

Applies to

Thread Safety

此型別具備執行緒安全。This type is thread safe.