UdpClient.Send Method (Byte, Int32)
Sends a UDP datagram to a remote host.
Assembly: System (in System.dll)
- Type: System.Byte
An array of type Byte that specifies the UDP datagram that you intend to send represented as an array of bytes.
- Type: System.Int32
The number of bytes in the datagram.
Return ValueType: System.Int32
The number of bytes sent.
This overload sends datagrams to the remote host established in the Connect method and returns the number of bytes sent. If you do not call Connect before calling this overload, the Send method will throw a SocketException. If you receive a SocketException, use SocketException.ErrorCode to obtain the specific error code. Once you have obtained this code, you can refer to the Windows Sockets version 2 API error code documentation in MSDN for a detailed description of the error.
If you want to send datagrams to a different remote host, you must call the Connect method and specify the desired remote host. Use either of the other Send method overloads to send datagrams to a broadcast address.
The following example demonstrates the Send method. You must establish a default remote host prior to using this overload.
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.