asked on

Triggering the Name property wont work

I have a little problem with the name property on a form. And i dont know if its possible to do.
Everytime the component name is changed i would like to do somthing before the actually changing take place.

Type
TempForm = class(TForm)
public
procedure SetName(const NewName: TComponentName); override;
end;

implementation

procedure TempForm.SetName(const NewName: TComponentName);
begin
showmessage(NewName);
inherited; //(or Inherited SetName(NewName); )
end;

My problem is that SETNAME is never triggered. What am i doing wrong here ??

Regards
Peter

rwilson032697

Try declaring setname like this:

protected
procedure SetName(const NewName: TComponentName); override;

Cheers,

Raymond.

Madshi

Yep, that's it... :-)

PeterLarsen

ASKER

Is the difference that you moved it to protected ?? If it is so, i have done that before :-(

rwilson032697

The difference is the override directive. Setname is defined originally as protected, and there's no need to promote it so you should leave it as that...

Cheers,

Raymond.

PeterLarsen

ASKER

Sorry Raymond, but i think i need to explain my question a little better.

What i need is a designtime method to trace if or when the user change the name property on a form.

Actually, i dont need to know the name, i just want some unique identifier, a number would be fine.

This information is used by some components (placed on the form). If i use the name as a unique identifier i also most know if it is changed.

I can now see that SetName never will work, because i can't activate the code at designtime like a component.

Any suggestions ??

Regards
Peter

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hubdog

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PeterLarsen

ASKER

Thanks for the reminder.
Peter