System.InValid Cast Exception -Pls guide

Hello everybody:
I am creating a client server application Asynchronously. I am adding the asynchrous socket to the hashtable.

IAsyncResult asyncSkt = m_socListener.BeginAccept(new AsyncCallback(OnClientConnect), null);
sockettable.Add(connectId, asyncSkt);

Now I want to access the connectId from the hashtable.

Socket socket = ( Socket)sockettable[connectId];

But I am getting System.InValidCastException... Can anyone tell me what is the problem?


Pls guide...

Rahil

so here, you get an IAsyncResult reference:

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IAsyncResult asyncSkt = m_socListener.BeginAccept(new AsyncCallback(OnClientConnect), null); 


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here you add your IAsyncResult reference to a hashtable:

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sockettable.Add(connectId, asyncSkt); 


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and then finally you try to cast an IAsyncResult reference to a Socket:

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Socket socket = ( Socket)sockettable[connectId]; 


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You end up with an InvalidCastException because you can't cast an IAsyncResult to a Socket. Maybe reading up on asynchronous programming willhelp you out.