[SOLVED] How to get component parent at designtime / runtime
lazarus / 31-LCL

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pcurtis · 2022-02-27 17:35

How do I get a components parent (not owner) at designtime / runtime?

I have tried this, but it fails the parent is nil....

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i constructor
TMyTest.Create(AOwner : TComponent);begin  inherited Create(AOwner);  
Enabled:= Parent.Enabled;  <-- fails here ....

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Onur2x · 2022-02-27 18:33

constructor TMyTest.Create(AOwner : TComponent);
begin
  inherited Create(AOwner);

 Parent := AOwner as TWinControl;

 Enabled:= Parent.Enabled;  <-- fails here

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af0815 · 2022-02-27 18:41

I think, create is not the correct place to look for the parent.
Because you say correct the owner must not be the parent.

IMHO you cannot set the enabled here, because the parent maybe not set
here (only the owner). And Enabled is normaly controlled by the
parent. If the Parent is not enabled, it makes no sense a child to be
enabled. Or i am wrong.

Look in IsEnabled how this can work, with the correct checks angainst
a parent is available or not.

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pcurtis · 2022-02-27 19:08

Thanks jamie.