C# BackgroundWorker skips DoWork and goes straight to RunWorkerCompleted
- by mr_man
I'm new with C# so go easy on me!
So far - I have a console app that listens for client connections and replies to the client accordingly.
I also have a WPF form with a button and a text box. The button launches some code to connect to the server as a BackgroundWorker, which then waits for a response before appending it to the end of the text box.
This works great, once. Sometimes twice. But then it kept crashing - turns out that the DoWork block wasn't being called at all and it was going straight to RunWorkerCompleted. Of course, the .result is blank so trying to convert it to a string fails.
Is this a rookie mistake? I have tried searching the internet for various ways of saying the above but haven't come across anything useful...
This is the code so far: http://pastebin.com/ZQvCFqxN - there are so many debug outputs from me trying to figure out exactly what went wrong.
This is the result of the debug outputs: http://pastebin.com/V412mppX
Any help much appreciated. Thanks!
EDIT: The relevant code post-fix (thanks to Patrick Quirk below) is:
public void dorequest(string query)
{
request = new BackgroundWorker();
request.WorkerSupportsCancellation = true;
request.WorkerReportsProgress = true;
request.ProgressChanged += request_ProgressChanged;
request.DoWork += request_DoWork;
request.RunWorkerCompleted += request_RunWorkerCompleted;
request.RunWorkerAsync(query);
}
