SocketFlags 枚举

指定套接字的发送和接收行为。

此枚举有一个 FlagsAttribute 属性，允许其成员值按位组合。

**命名空间:**System.Net.Sockets
**程序集:**System（在 system.dll 中）

语法

声明
<FlagsAttribute> _
Public Enumeration SocketFlags
用法
Dim instance As SocketFlags

[FlagsAttribute] 
public enum SocketFlags

[FlagsAttribute] 
public enum class SocketFlags

/** @attribute FlagsAttribute() */ 
public enum SocketFlags

FlagsAttribute 
public enum SocketFlags

成员

	成员名称	说明
	Broadcast	指示广播数据包。
	ControlDataTruncated	指示控件数据不适合内部 64-KB 缓冲区，并且已被截断。
	DontRoute	不使用路由表发送。
	MaxIOVectorLength	为发送和接收数据的 WSABUF 结构数量提供标准值。
	Multicast
	None	不对此调用使用标志。
	OutOfBand	处理带外数据。
	Partial	消息的部分发送或接收。
	Peek	查看传入的消息。
	Truncated	该消息太大，无法放入指定的缓冲区，因而被截断。

示例

下面的示例发送数据并将 None 指定为 SocketFlags。

' Displays sending with a connected socket
' using the overload that takes a buffer, message size, and socket flags.
Public Shared Function SendReceiveTest3(ByVal server As Socket) As Integer 
    Dim msg As Byte() = Encoding.UTF8.GetBytes("This is a test")
    Dim bytes(255) As Byte
    Try
        ' Blocks until send returns.
        Dim i As Integer = server.Send(msg, msg.Length, SocketFlags.None)
        Console.WriteLine("Sent {0} bytes.", i)
        
        ' Get reply from the server.
        Dim byteCount As Integer = server.Receive(bytes, server.Available, SocketFlags.None)
        If byteCount > 0 Then
            Console.WriteLine(Encoding.UTF8.GetString(bytes))
        End If
    Catch e As SocketException
        Console.WriteLine("{0} Error code: {1}.", e.Message, e.ErrorCode)
        Return e.ErrorCode
    End Try
    Return 0

End Function 'SendReceiveTest3

// Displays sending with a connected socket
// using the overload that takes a buffer, message size, and socket flags.
public static int SendReceiveTest3(Socket server)
{
    byte[] msg = Encoding.UTF8.GetBytes("This is a test");
    byte[] bytes = new byte[256];
    try 
    {
        // Blocks until send returns.
        int i = server.Send(msg, msg.Length, SocketFlags.None);
        Console.WriteLine("Sent {0} bytes.", i);
        
        // Get reply from the server.
        int byteCount = server.Receive(bytes, server.Available, 
                                           SocketFlags.None);
        if (byteCount > 0)
            Console.WriteLine(Encoding.UTF8.GetString(bytes));
    }
    catch (SocketException e)
    {
        Console.WriteLine("{0} Error code: {1}.", e.Message, e.ErrorCode);
        return (e.ErrorCode);
    }
    return 0;
}

// Displays sending with a connected socket
// using the overload that takes a buffer, message size, and socket flags.
int SendReceiveTest3( Socket^ server )
{
   array<Byte>^ msg = Encoding::UTF8->GetBytes( "This is a test" );
   array<Byte>^ bytes = gcnew array<Byte>(256);
   try
   {
      // Blocks until send returns.
      int i = server->Send( msg, msg->Length, SocketFlags::None );
      Console::WriteLine( "Sent {0} bytes.", i.ToString() );
      
      // Get reply from the server.
      int byteCount = server->Receive( bytes, server->Available,
         SocketFlags::None );
      if ( byteCount > 0 )
      {
         Console::WriteLine( Encoding::UTF8->GetString( bytes ) );
      }
   }
   catch ( SocketException^ e ) 
   {
      Console::WriteLine( "{0} Error code: {1}.", e->Message, e->ErrorCode.ToString() );
      return (e->ErrorCode);
   }
   return 0;
}

// Displays sending with a connected socket
// using the overload that takes a buffer, message size, and socket flags.
public static int SendReceiveTest3(Socket server)
{
    ubyte msg[] = Encoding.get_UTF8().GetBytes("This is a test");
    ubyte bytes[] = new ubyte[256];
    try {
        // Blocks until send returns.
        int i = server.Send(msg, msg.get_Length(), SocketFlags.None);
        Console.WriteLine("Sent {0} bytes.", (Int32)i);
        // Get reply from the server.
        server.Receive(bytes, server.get_Available(), SocketFlags.None);
        Console.WriteLine(Encoding.get_UTF8().GetString(bytes));
    }
    catch (SocketException e) {
        Console.WriteLine("{0} Error code: {1}.", e.get_Message(),
            (Int32)e.get_ErrorCode());
        return e.get_ErrorCode();
    }
    return 0;
} //SendReceiveTest3

平台

Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。

版本信息

.NET Framework

受以下版本支持：2.0、1.1、1.0

.NET Compact Framework

受以下版本支持：2.0、1.0

请参见

参考

System.Net.Sockets 命名空间