Confirmation of sent messages

[newbie55]

I’m currently using Async sockets with .BeginReceive called to collect any message from clients.

I would like to know if the receiving socket received and processed the data sent and throw an error if not.

My problem comes when calling .receive (or as below) to check for an ACK from the client. E.g. the .BeginReceive catches the message.

I would like to use code like below

             Dim ns As New NetworkStream(RemoteSocket)
 
            '_NetworkStream.WriteTimeout = 10000
 
            '_NetworkStream.ReadTimeout = 10000
 
            Dim strResponse As String
 
            ' Send a string (newline terminated) to the server.
 
            Dim writer As New System.IO.StreamWriter(ns)
 
            Dim reader As New System.IO.StreamReader(ns)
 
            writer.Write(Message)
 
            writer.Flush()
 
            ' Read server response (up to a newline).
 
            Try
 
                strResponse = reader.ReadLine
 
            Catch ex As Exception
 
'Thorw error, report back send problem
 
                strResponse = Nothing
 
            End Try
 
            'Close
 
            writer.Close()
 
            reader.Close()
 
            ns.Close()
 
            Return strResponse
 
        Catch ex As Exception
 
            Return Nothing
 
        Finally
 

Any sugguestions, I understand you can’t cancel a .BeginReceive but can you override it?

[Plater]

Why not use TCP instead of UDP? That protocol is much more suited to verification of data transfer and connection