TcpClient.BeginConnect Method (IPAddress, Int32, AsyncCallback, Object)
Assembly: System (in System.dll)
<HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading := True)> Public Function BeginConnect ( address As IPAddress, port As Integer, requestCallback As AsyncCallback, state As Object ) As IAsyncResult
The port number of the remote host.
An AsyncCallback delegate that references the method to invoke when the operation is complete.
A user-defined object that contains information about the connect operation. This object is passed to the requestCallback delegate when the operation is complete.
The address parameter is null.
An error occurred when attempting to access the socket. See the Remarks section for more information.
The Socket has been closed.
A caller higher in the call stack does not have permission for the requested operation.
The port number is not valid.
The asynchronous EndConnect method. Typically, the method is invoked by the asyncCallback delegate.operation must be completed by calling the
This method does not block until the operation completes. To block until the operation completes, use one of the Connect method overloads.
For detailed information about using the asynchronous programming model, see Calling Synchronous Methods Asynchronously.
Available since 2.0