Doing work after the window has displayed.

[clintp]

I have a form, and I need to do some processing after the form has
displayed. The processing could take a few moments and could result in
a dialog box being displayed.

The problem is, I can't seem to find the event (to insert my
processing) that happens after the form has displayed. Back in the
main body of my code I instantiate the form:

MyForm mf = new MyForm();
if (mf.ShowDialog())
{ .... }

And inside of MyForm I've tried catching VisibleChanged (with Visible =
true) and that doesn't work. It does the processing, but the form
doesn't display before processing starts.

This is important, becuase if the processing turns out in a particular
way I might not have to have the user interact with the form at all! I
just need to display a message, set MyForm.DialogResult and close the
window. But I can't if it's not open yet.

Help?

 

[Pascal Cloup]

override OnActivated() method and put your process in this method.

Pascal

 

[David Lei]

If the process is long, you will need to use a separate thread to do the
work.
Otherwise your users cannot interact with the form once the process starts.

See the following articles:
http://msdn.microsoft.com/msdnmag/issues/04/01/BasicInstincts/default.aspx
http://msdn.microsoft.com/msdnmag/issues/04/05/BasicInstincts/

David