I'm trying to do this for the first time. While I can't send the exact
code, here is in essence what I'm doing:
public void CallMyService()
{
MyService service = new MyService();
service.BeginCallMethod(
new AsyncCallback(this.CallMethodResultCallback),
service
);
}
public void CallMethodResultCallback(IAsyncResult ar)
{
MyService service = (MyService)ar.AsyncState;
string result = service.EndCallMethod(ar);
...
}
So the callback happens, and if I set a break point, I can get the result.
But sometime soon afterward I get a "System.IO.IOException" with the
following message:
"Unable to read data from the transport connection"
Call stack says I'm in System.Net.Connection::ReadCallback()
This does seem to happen when I try to put the string in a UI control. Is
this not allowed? Is there a way to create the AsyncCallback such that it
will be called on the UI thread?
Thanks for any help!
-John
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