Creating components at Runtime in Firemonkey

Asked Mar 05 '23 at 09:41

Active Mar 05 '23 at 10:10

Viewed 109 times

I'm creating a TPanel component at runtime with this code:

begin
   MyPanel := TPanel.Create(Self);
   MyPanel.Name := 'mypanel';
   MyPanel.Position.X := 0;
   MyPanel.Position.Y := 0;
   MyPanel.Width := 100;
   MyPanel.Height := 100;
   Form2.Fill.Kind := TBrushkind.Solid;
   form2.fill.Color := claSlateGrey;
   MyPanel.Visible := True;
end;

but nothing is visible. All the main properties (size and position) should be enough, but it seems they're not. In other forms I'm creating a great number of components at runtime, that are working fine. I'm wondering what is it that makes this case different from the others. What I'm doing wrong?

edited Mar 05 '23 at 10:10

Dalija Prasnikar

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asked Mar 05 '23 at 09:41

Sergio Bonfiglio

7

You need to assign the parent too: e.g. `MyPanel.Parent := self;` – Tom Brunberg Mar 05 '23 at 10:03
2

For explanation of `owner` and `parent`, see https://stackoverflow.com/questions/32241645/what-is-the-difference-between-owner-and-parent-of-a-control/32244168#32244168 – Tom Brunberg Mar 05 '23 at 10:41
What an IDIOT I am! Thankyou Tom. Also the discussion that you suggested is SO good. Thanks twice! – Sergio Bonfiglio Mar 05 '23 at 11:56

Creating components at Runtime in Firemonkey

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