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bring a WinForm into focus

Posted on 2009-04-01
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Last Modified: 2013-12-17
How do you bring a WinForm into focus?

i.e. have multiple WinForms opened -- want to be able to instruct a WinForm to come forward (on top) so that WinForm's content can be viewed.
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Question by:amillyard
8 Comments
 
LVL 53

Expert Comment

by:Dhaest
ID: 24038033
What kind of application do you have ?
A single or multiple document interface ?

Focus Form
http://www.java2s.com/Code/CSharp/GUI-Windows-Form/FocusForm.htm
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Author Comment

by:amillyard
ID: 24038280
code snippet is how I create and initially show the window.

obviously, other windows can be opened at any time and/or the user minimise windows -- want to be able to programmically make a window the current window (just as if you have clicked it yourself manually)
public static FormABC formABC;
 
if ((formABC != null && !formABC.IsDisposed)) return;
 
formABC = new FormABC { Owner = this };
formABC.Show();

Open in new window

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LVL 6

Expert Comment

by:HarryNS
ID: 24038975
All the forms should have been opened from one Parent form. You need to trigger an event or call a public member to make desired form to bring at the top level from Parent Form.

You can access the parent form by this.ParentForm...
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Author Comment

by:amillyard
ID: 24040310
HarryNS: sorry...a little confused ...

I understand the concept of launching all WinForms from a main for etc.

but a bit lost with:  "You can access the parent form by this.ParentForm..."  

I know how to access the main WinForm -- just needed to know what triggers a window to become Top Level / active window
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LVL 23

Accepted Solution

by:
Snarf0001 earned 2000 total points
ID: 24040837
You still have a reference to formABC, right?
Easiest way is with

 formABC.Activate()
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Author Comment

by:amillyard
ID: 24041325
Snarf0001:  I see.  Have applied suggestion -- I am getting the following compiling error as follows:

Cannot access non-static method 'Activate' in static context
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LVL 23

Expert Comment

by:Snarf0001
ID: 24041404
Are you calling this from within a static function?
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Author Comment

by:amillyard
ID: 24041639
Snarf0001:  You triggered a thought -- which resolved the issue -- I was not calling the WinForm from the right place -- i.e. from the source WinForm
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