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Thread Safe GUI, Example in vb.net 2005

Posted on 2007-04-05
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Last Modified: 2008-02-01
I would like an example program that demonstrates the usage of threads to create a program that can update, a statusbarlabel from a different thread.
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Question by:MasterThai
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Jason Evans earned 500 total points
ID: 18862907
Hi there.

I did the same thing for an app I wrote once, I needed a progress bar to display the status of a task which was running in another thread. To achieve this, I used the .NET 2.0 component called BackgroundWorker. Here are a couple of links to get you going:

http://msdn2.microsoft.com/en-us/library/system.componentmodel.backgroundworker.aspx
http://www.codeguru.com/columns/vb/article.php/c10755/

Basically the BackgroundWorker is a control that allows you to perform tasks in another thread of execution, whilst your UI carries on responding to user events. Plus the backgroundworker can talk to controls on the form, eg update the value of a progress bar.

Try the links above to get you started, hope this helps.
Jas.
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by:MasterThai
ID: 18864426
I have tried the backgroundworker thread to no avail, I can update most controls, because they allow to be p/invoked I just can't figure out how to update the statusbar
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LVL 2

Author Comment

by:MasterThai
ID: 18864734
Ok well, i figured it out, instead of invoking the control itself i invoked the form and that allowed me to update it.
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