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Old August 5th, 2004, 09:48 AM
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Default How to Refresh a Windows Form in C#

I have a Windows form application that has a start button, a progress bar and also writes information to the status bar the code is C#. My problem is that when you hit the start button and the program executes then the application window does not get refreshed so you just see an ugly gray rectangle until the application ends. The status and progress bar do get updated but still if you toggle to another application and then toggle back to the Windows form application the contents of the Windows form is not refreshed. I want to have the Windows form to refresh (or redraw) itself say every second or have an event like a mouse over event refresh the window.
Any ideas on how I can implement this, help much appreciated.
Old April 13th, 2006, 10:12 AM
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Use this.Refresh() to repaint the screen

Sridhar Subramanian
The Following User Says Thank You to omegasri For This Useful Post:
Alan8 (January 10th, 2014)
Old May 26th, 2006, 06:10 AM
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I've used this.Refresh(), this.Invalidate() and this.Update().
I've also tried Application.DoEvents() and the form still won't refresh.

Any more ideas?

Old March 28th, 2007, 12:12 AM
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Send a message via MSN to Corayzon

You need to call the process on another thread.

In the event Click for your button you can...

System.Threading.Thread thdWorker = new ... (MethodToCall);

Then simply call thdWorker.Start();

You'll find that you get cross thread operation errors when calling form object methods on this thread. You solve this by invoking each call to the main thread that created the form.

For help on invoking thread operations just search for information on the Invoke method on MSDN.


Old June 16th, 2010, 10:52 AM
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Default Auto Refresh with timer in C# 2008


Hello everybody I'm Alex i have little problem, i can't solve may problem on how to make auto refresh in a minute the windows form Application in c# 2008 using timer..if possible.. help me.

thanks a lot.
Old June 16th, 2010, 01:34 PM
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Send a message via MSN to gbianchi

Your problem is on line 13...

Maybe you could be a little more specific on your problem???


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