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How to iterate through a parent's child controls and enable/ disable them Turn on/off line numbers in source code. Switch to Orginial background IDE or DSP color Comment or reply to this aritlce/tip for discussion. Bookmark this article to my favorite article(s). Print this article
30-Aug-02
Category
VCL-General
Language
Delphi All Versions
Views
75
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Publisher:
DSP, Administrator
Reference URL:
DKB
			Author: Tomas Rutkauskas

I have a question about disabling containers. In my case I have a panel containing 
a button. When disabling the panel the button is disabled, but not greyed. Why is 
it not greyed?

Answer:

You have several options. Perhaps the easiest is to use this small routine which 
iterates through a parent's children controls, enabling / disabling each in turn:


1   procedure EnableContainer(Parent: TWinControl; AEnabled: Boolean);
2   var
3     I: Integer;
4   begin
5     for I := 0 to Parent.ControlCount - 1 do
6       Parent.Controls[I].Enabled := AEnabled;
7     Parent.Enabled := AEnabled;
8   end;
9   
10  
11  //So instead of doing this:
12  
13  
14  Panel1.Enabled := False;
15  
16  
17  //do this instead:
18  
19  
20  EnableContainer(Panel1, False);


			
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