UdpClient.EndSend(IAsyncResult) Method
Definition
Important
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Ends a pending asynchronous send.
public:
int EndSend(IAsyncResult ^ asyncResult);public int EndSend (IAsyncResult asyncResult);member this.EndSend : IAsyncResult -> intPublic Function EndSend (asyncResult As IAsyncResult) As IntegerParameters
- asyncResult
- IAsyncResult
An IAsyncResult object returned by a call to BeginSend.
Returns
If successful, the number of bytes sent to the UdpClient.
Exceptions
asyncResult is null.
asyncResult was not returned by a call to the BeginSend(Byte[], Int32, Int32, SocketFlags, AsyncCallback, Object) method.
EndSend(IAsyncResult) was previously called for the asynchronous read.
An error occurred when attempting to access the underlying socket.
The underlying Socket has been closed.
Examples
The following code example uses BeginSend to complete an asynchronous send of a server request.
public:
static bool isMessageSent;
static void SendCallback(IAsyncResult^ asyncResult)
{
UdpClient^ udpClient = (UdpClient^)asyncResult->AsyncState;
Console::WriteLine("number of bytes sent: {0}",
udpClient->EndSend(asyncResult));
isMessageSent = true;
}
public static bool messageSent = false;
public static void SendCallback(IAsyncResult ar)
{
UdpClient u = (UdpClient)ar.AsyncState;
Console.WriteLine($"number of bytes sent: {u.EndSend(ar)}");
messageSent = true;
}
Remarks
This method blocks until the operation is complete.
To perform this operation synchronously, use the Send method.
