Asynchronous Question

[Programm3r]

Hi all, Some background information: I have a method A that calls another method B. In method B an asynchronous TCP/IP read occurs: this.tcpClient.GetStream().BeginRead(byteReadBuffer, 0, byteReadBuffer.Length, new AsyncCallback(ProcessReadBuffer), tcpClient.GetStream()); on result method ProcessReadBuffer So my question: How can I wait for the asynchronous ProcessReadBuffer method to complete in method B. Reason being that I require some results from ProcessReadBuffer method in method A? Many thanks in advance. Kind regards,

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[Rob Philpott]

Why not just call it synchronously then?

Regards, Rob Philpott.

[Programm3r]

Good point ... :sigh: That's that I did at the end of the day, but was curious how to make it happen :confused:

The only programmers that are better C# programmers, are those who look like this -> :bob:

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[Abhinav S]

Try storing the result in an IAsyncResult variable and then call AsyncWaitHandle.WaitOne() on that object.

[Programm3r]

Hi, Thanks for the response. I did try doing that, but I noticed that the WaitOne() returns immediately with a true result and only then after it goes into the method. Kind regards,

The only programmers that are better C# programmers, are those who look like this -> :bob:

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[Alan N]

Hi, BeginRead does not have to specify a callback method and you then call EndRead when the result of the async operation is required. EndRead will block until the result is available. http://msdn.microsoft.com/en-us/library/ms228967.aspx[^] Alan.

[Abhinav S]

Strange - this is how I used it - ar = u.BeginInvoke(param, new AsyncCallback(Complete), "state"); ar.AsyncWaitHandle.WaitOne(); u was the my delegate and param was the parameter I passed into that method that my delegate invoked.