MessageHeaders Class

Definition

表示訊息的訊息標頭集合。Represents a collection of message headers for a message. 這個類別無法被繼承。This class cannot be inherited.

public ref class MessageHeaders sealed : System::Collections::Generic::IEnumerable<System::ServiceModel::Channels::MessageHeaderInfo ^>
public sealed class MessageHeaders : System.Collections.Generic.IEnumerable<System.ServiceModel.Channels.MessageHeaderInfo>
type MessageHeaders = class
    interface seq<MessageHeaderInfo>
    interface IEnumerable
Public NotInheritable Class MessageHeaders
Implements IEnumerable(Of MessageHeaderInfo)
Inheritance
MessageHeaders
Implements

Examples

下列程式碼範例示範使用通道處理站傳送訊息,並且從回覆讀取 Action 標頭的基本用戶端。The following code example demonstrates a basic client using the channel factory to send a message and read the action header from the reply.

using System;
using System.Collections.Generic;
using System.Text;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.Runtime.Serialization;

namespace ConsoleApplication1
{
    class client
    {

        static void RunClient()
        {
            //Step1: create a binding with just HTTP
            CustomBinding binding = new CustomBinding();
            binding.Elements.Add(new HttpTransportBindingElement());
            //Step2: use the binding to build the channel factory
            IChannelFactory<IRequestChannel> factory =
            binding.BuildChannelFactory<IRequestChannel>(
                             new BindingParameterCollection());
            //open the channel factory
            factory.Open();
            //Step3: use the channel factory to create a channel
            IRequestChannel channel = factory.CreateChannel(
               new EndpointAddress("http://localhost:8080/channelapp"));
            channel.Open();
            //Step4: create a message
            Message requestmessage = Message.CreateMessage(
                MessageVersion.Soap12WSAddressing10,
                "http://contoso.com/someaction",
                 "This is the body data");
            //send message
            Message replymessage = channel.Request(requestmessage);
            Console.WriteLine("Reply message received");
            Console.WriteLine("Reply action: {0}",
                                  replymessage.Headers.Action);
            string data = replymessage.GetBody<string>();
            Console.WriteLine("Reply content: {0}", data);
            //Step5: don't forget to close the message
            requestmessage.Close();
            replymessage.Close();
            //don't forget to close the channel
            channel.Close();
            //don't forget to close the factory
            factory.Close();
        }
        public static void Main()
        {
            Console.WriteLine("Press [ENTER] when service is ready");
            Console.ReadLine();
            RunClient();
            Console.WriteLine("Press [ENTER] to exit");
            Console.ReadLine();
        }
    }
}


Imports System.Collections.Generic
Imports System.Text
Imports System.ServiceModel
Imports System.ServiceModel.Channels
Imports System.Runtime.Serialization

Namespace ConsoleApplication1
    Friend Class client


        Private Shared Sub RunClient()
            'Step1: create a binding with just HTTP
            Dim binding As New CustomBinding()
            binding.Elements.Add(New HttpTransportBindingElement())
            'Step2: use the binding to build the channel factory
            Dim factory As IChannelFactory(Of IRequestChannel) = binding.BuildChannelFactory(Of IRequestChannel)(New BindingParameterCollection())
            'open the channel factory
            factory.Open()
            'Step3: use the channel factory to create a channel
            Dim channel As IRequestChannel = factory.CreateChannel(New EndpointAddress("http://localhost:8080/channelapp"))
            channel.Open()
            'Step4: create a message
            Dim requestmessage As Message = Message.CreateMessage(MessageVersion.Soap12WSAddressing10, "http://contoso.com/someaction", "This is the body data")
            'send message
            Dim replymessage As Message = channel.Request(requestmessage)
            Console.WriteLine("Reply message received")
            Console.WriteLine("Reply action: {0}", replymessage.Headers.Action)
            Dim data = replymessage.GetBody(Of String)()
            Console.WriteLine("Reply content: {0}", data)
            'Step5: don't forget to close the message
            requestmessage.Close()
            replymessage.Close()
            'don't forget to close the channel
            channel.Close()
            'don't forget to close the factory
            factory.Close()
        End Sub
        Public Shared Sub Main()
            Console.WriteLine("Press [ENTER] when service is ready")
            Console.ReadLine()
            RunClient()
            Console.WriteLine("Press [ENTER] to exit")
            Console.ReadLine()
        End Sub
    End Class
End Namespace

Remarks

訊息標頭包含選擇性中繼資料,其中描述由 Message 類別所封裝的訊息。A message header contains optional metadata that describe a message encapsulated by the Message class.

Message 可以有零個或更多的標頭 (當做擴充機制使用),以便在應用程式特定的訊息中傳遞資訊。A Message can have zero or more headers that are used as an extension mechanism to pass information in messages that are application-specific. 您可以藉由呼叫 Headers 方法,使用 Add 將訊息標頭新增至訊息中。You can use Headers to add message headers to a message by calling the Add method.

Windows Communication Foundation (WCF)提供許多預先定義的訊息標頭:Windows Communication Foundation (WCF) provides a number of predefined message headers:

標頭名稱Header Name 描述Description
To 包含此訊息所針對的角色。Contains the role that the message is targeting.
動作Action 提供應該如何處理此訊息的說明。Provides a description of how the message should be processed.
FaultToFaultTo 包含錯誤應該傳送之目標節點的位址。Contains the address of the node to which faults should be sent.
From 包含傳送訊息之節點的位址。Contains the address of the node that sent the message.
要求Request 指出此訊息是否為要求。Indicates whether the message is a request.
MessageIDMessageID 包含此訊息的唯一 ID。Contains the unique ID of the message.
RelatesToRelatesTo 包含與此訊息相關之訊息的 ID。Contains the IDs of messages that are related to this message.
ReplyToReplyTo 包含應該針對要求傳送回覆之目標節點的位址。Contains the address of the node to which a reply should be sent for a request.

Constructors

MessageHeaders(MessageHeaders)

使用指定的訊息標頭集合,初始化 MessageHeaders 類別的新執行個體。Initializes a new instance of the MessageHeaders class with the specified collection of message headers.

MessageHeaders(MessageVersion)

使用指定的訊息版本,初始化 MessageHeaders 類別的新執行個體。Initializes a new instance of the MessageHeaders class with the specified message version.

MessageHeaders(MessageVersion, Int32)

使用指定的訊息版本和大小,初始化 MessageHeaders 類別的新執行個體。Initializes a new instance of the MessageHeaders class with the specified message version and size.

Properties

Action

取得或設定應該如何處理訊息的描述。Gets or sets a description of how the message should be processed.

Count

取得這個集合中的訊息標頭數目。Gets the number of message headers in this collection.

FaultTo

取得或設定錯誤應該傳送之目標節點的位址。Gets or sets the address of the node to which faults should be sent.

From

取得或設定傳送訊息之節點的位址。Gets or sets the address of the node that sent the message.

Item[Int32]

擷取在指定索引處的標頭。Retrieves a header at the given index.

MessageId

取得或設定訊息的唯一識別碼。Gets or sets the unique ID of the message.

MessageVersion

取得訊息的 SOAP 版本。Gets the SOAP version of the message.

RelatesTo

取得與此訊息相關之訊息的識別碼。Gets the IDs of messages that are related to this message.

ReplyTo

取得或設定應該針對要求傳送回覆之目標節點的位址。Gets or sets the address of the node to which a reply should be sent for a request.

To

取得或設定訊息的目的端點。Gets or sets the destination endpoint of a message.

UnderstoodHeaders

根據 SOAP 1.1/1.2 規格取得必須解讀的所有訊息標頭。Gets all the message headers that must be understood, according to SOAP 1.1/1.2 specification.

Methods

Add(MessageHeader)

將指定的訊息標頭加入至集合。Adds the specified message header to the collection.

Clear()

移除集合中的所有標頭。Removes all the headers from the collection.

CopyHeaderFrom(Message, Int32)

從指定的訊息將位於指定索引處的標頭內容複製到這個執行個體。Copies the header content located at the specified index from the specified message to this instance.

CopyHeaderFrom(MessageHeaders, Int32)

從指定的訊息標頭集合將位於指定索引處的標頭內容複製到這個執行個體。Copies the header content located at the specified index from the specified message header collection to this instance.

CopyHeadersFrom(Message)

從指定的訊息將所有標頭的內容複製到這個執行個體。Copies the content of all the headers from the specified message to this instance.

CopyHeadersFrom(MessageHeaders)

從指定的標頭集合將內容複製到這個執行個體。Copies the content from the specified header collection to this instance.

CopyTo(MessageHeaderInfo[], Int32)

從陣列的特定索引開始,將這個集合的標頭複製至陣列。Copies the headers from this collection to an array, starting at a particular index of the array.

Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(Inherited from Object)
FindHeader(String, String)

藉由指定的 LocalName 和標頭項目之命名空間 URI,在這個集合中尋找訊息標頭。Finds a message header in this collection by the specified LocalName and namespace URI of the header element.

FindHeader(String, String, String[])

藉由指定的 LocalName、標頭項目之命名空間 URI 和 Actor,在這個集合中尋找訊息標頭。Finds a message header in this collection by the specified LocalName, namespace URI and actors of the header element.

GetEnumerator()

傳回可逐一查看集合的列舉值。Returns an enumerator for iterating through the collection. 這個方法無法被繼承。This method cannot be inherited.

GetHashCode()

做為預設雜湊函式。Serves as the default hash function.

(Inherited from Object)
GetHeader<T>(Int32)

擷取這個集合中特定位置的訊息標頭。Retrieves a message header at a specific position in this collection.

GetHeader<T>(Int32, XmlObjectSerializer)

擷取這個集合中特定位置的訊息標頭。Retrieves a message header at a specific position in this collection.

GetHeader<T>(String, String)

藉由指定的 LocalName 和標頭項目之命名空間 URI,在這個集合中尋找訊息標頭。Finds a message header in this collection by the specified LocalName and namespace URI of the header element.

GetHeader<T>(String, String, String[])

藉由指定的 LocalName、標頭項目之命名空間 URI 和 Actor,在這個集合中擷取訊息標頭。Retrieves a message header in this collection by the specified LocalName, namespace URI and actors of the header element.

GetHeader<T>(String, String, XmlObjectSerializer)

藉由指定的 LocalName、命名空間 URI 和序列化程式,在這個集合中擷取訊息標頭。Retrieves a message header in this collection by the specified LocalName, namespace URI and serializer.

GetReaderAtHeader(Int32)

取得會從集合中指定位置取用訊息標頭的 XML 字典讀取器。Gets a XML dictionary reader that consumes the message header at the specified location of the collection.

GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(Inherited from Object)
HaveMandatoryHeadersBeenUnderstood()

驗證是否已正確解譯及處理以 MustUnderstand 標記的所有訊息標頭。Verifies whether all the message headers marked with MustUnderstand have been properly interpreted and processed.

HaveMandatoryHeadersBeenUnderstood(String[])

驗證指定的收件者是否已正確解譯及處理以 MustUnderstand 標記的所有訊息標頭。Verifies whether the specified recipients have properly interpreted and processed all the message headers marked with MustUnderstand.

Insert(Int32, MessageHeader)

將項目插入至集合中的指定索引處。Inserts a message header into the collection at the specified index.

MemberwiseClone()

建立目前 Object 的淺層複製。Creates a shallow copy of the current Object.

(Inherited from Object)
RemoveAll(String, String)

使用指定的名稱與命名空間從集合移除所有標頭。Removes all headers with the specified name and namespace from the collection.

RemoveAt(Int32)

從集合的指定索引處移除訊息標頭。Removes the message header at the specified index from the collection.

SetAction(XmlDictionaryString)

設定標頭的 Action 項目。Sets the action element of the header.

ToString()

傳回代表目前物件的字串。Returns a string that represents the current object.

(Inherited from Object)
WriteHeader(Int32, XmlDictionaryWriter)

使用指定的 XML 寫入器從指定的位置序列化標頭。Serializes the header from the specified location using the specified XML writer.

WriteHeader(Int32, XmlWriter)

使用指定的 XML 寫入器從指定的位置序列化標頭。Serializes the header from the specified location using the specified XML writer.

WriteHeaderContents(Int32, XmlDictionaryWriter)

使用指定的 XML 寫入器序列化指定的標頭內容。Serializes the specified header content using the specified XML writer.

WriteHeaderContents(Int32, XmlWriter)

使用指定的 XML 寫入器序列化指定的標頭內容。Serializes the specified header content using the specified XML writer.

WriteStartHeader(Int32, XmlDictionaryWriter)

使用指定的 XML 寫入器序列化開始標頭。Serializes the start header using the specified XML writer.

WriteStartHeader(Int32, XmlWriter)

使用指定的 XML 寫入器序列化開始標頭。Serializes the start header using the specified XML writer.

Explicit Interface Implementations

IEnumerable.GetEnumerator()

傳回可逐一查看集合的列舉值。Returns an enumerator for iterating through the collection. 這個方法無法被繼承。This method cannot be inherited.

Extension Methods

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.

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.

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