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Socket::SendTimeout Property

Gets or sets a value that specifies the amount of time after which a synchronous Send call will time out.

Namespace:  System.Net.Sockets
Assembly:  System (in System.dll)

property int SendTimeout {
	int get ();
	void set (int value);

Property Value

Type: System::Int32
The time-out value, in milliseconds. If you set the property with a value between 1 and 499, the value will be changed to 500. The default value is 0, which indicates an infinite time-out period. Specifying -1 also indicates an infinite time-out period.


An error occurred when attempting to access the socket.


The Socket has been closed.


The value specified for a set operation is less than -1.

This option applies to synchronous Send calls only. If the time-out period is exceeded, the Send method will throw a SocketException.

The following code example demonstrates the use of the SendTimeout property.

static void ConfigureTcpSocket(Socket^ tcpSocket)

    // Don't allow another socket to bind to this port.
    tcpSocket->ExclusiveAddressUse = true;

    // The socket will linger for 10 seconds after 
    // Socket.Close is called.
    tcpSocket->LingerState = gcnew LingerOption(true, 10);

    // Disable the Nagle Algorithm for this tcp socket.
    tcpSocket->NoDelay = true;

    // Set the receive buffer size to 8k
    tcpSocket->ReceiveBufferSize = 8192;

    // Set the timeout for synchronous receive methods to 
    // 1 second (1000 milliseconds.)
    tcpSocket->ReceiveTimeout = 1000;

    // Set the send buffer size to 8k.
    tcpSocket->SendBufferSize = 8192;

    // Set the timeout for synchronous send methods 
    // to 1 second (1000 milliseconds.)
    tcpSocket->SendTimeout = 1000;

    // Set the Time To Live (TTL) to 42 router hops.
    tcpSocket->Ttl = 42;
    Console::WriteLine("Tcp Socket configured:");
    Console::WriteLine("  ExclusiveAddressUse {0}", 
    Console::WriteLine("  LingerState {0}, {1}", 
    Console::WriteLine("  NoDelay {0}",
    Console::WriteLine("  ReceiveBufferSize {0}", 
    Console::WriteLine("  ReceiveTimeout {0}",
    Console::WriteLine("  SendBufferSize {0}",
    Console::WriteLine("  SendTimeout {0}",
    Console::WriteLine("  Ttl {0}",
    Console::WriteLine("  IsBound {0}",

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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