Setting Form1.BorderIcons in code

Thanks for the post.

I did not have much luck with your method. I create all my forms ont he fly so did not have to change any CreateForms. I removed the FomrCreate event and tried adding :

   constructor Create; reintroduce;
 ..

constructor TMyForm1.Create;
begin
  inherited Create(Nil);  // Nil: no owner
 
  MyCombo.Style  := csDropDownList;
end;

This does not work. I have to set the style in the object inspector for the items dropdown to show.

Thanks, Tom.

works like a charme

procedure TForm1.FormCreate(Sender: TObject);
begin
  BorderIcons := [];  //just left out Form1
  Position       := poMainFormCenter;
  combobox1.Style := csDropDownList;
end;

?? didn't understand the question -> problem

meikl ;-)

So they all show for you? What if you do a combobox1.items.commatext := 'one,two,three'; Does that show too?

I wonder why they don't show for me unless thay are in the object inpector. From j42's comment above he would appear to know what I am talking about and has experienced the problem.

Confused now.

Cheers, Tom.

> From j42's comment above he would appear to know what I am talking about and has experienced the problem.
Yep, I had similar problems but I can't remember exactly. The only thing I know is that sometimes the OnCreate event is
'too late', thus the hiding of the original constructor. And I can remember other members of EE asking qusetions about
the same topic.
I played a little with the BorderIcons property and it seams that you can use it in the OnCreate event. I don't know what's
wrong with your code. I tried SDI and MDI apps, Application.CreateForm and Form1 := TForm1.Create(Nil). Everything worked
ok...
Just another guess. Try to replace all the instances (Form1, Form2) by the Self keyword. If it works I will explain why. Sorry,
don't know what else to do.

thanks for the info. Not sure what you mean by "Try to replace all the instances (Form1, Form2) by the Self keyword". I create all froms on the fly, normally they are embeded in other forms so the create goes like
  TheForm := Self.Create(ParentPanel.Owner);
with TheForm reference being local only to a procedure and killed at the end.

Thanks for the testing. I'll have to figure out why mine does not get called.

Cheers, Tom.

Ok, maybe you are aware of all that stuff. If so, please kindly skip this comment ;-)

let's say you have a class TYourForm and a global variable YourForm in YourFormUnit.pas.
In your *.dpr file there is something like Appliaction.CreateForm(TYourForm, YourForm). In
your procedure you have a local variable theForm: TYourForm and you call
theForm := TYourForm.Create(ParentPanel.Owner). Your OnCreate handler looks something
like this:

procedure TYourForm.CreateForm(Sender...);
begin
  YourForm.BorderIcons := [];
end;
=> Error.

YourForm is not a dangling reference since the CreateForm in the *.dpr file but you don't
want to change any property of YourForm but of theForm (the local one).

procedure TYourForm.CreateForm(Sender...);
begin
  theForm.BorderIcons := [];
end;
will work but it's bad style.

procedure TYourForm.CreateForm(Sender...);
begin
  Self.BorderIcons := [];
end;
is what I prefer.

Hope this was clear enough.

This wasn't working and then started working again...one of those weird delphi problems.  I am trying to think of an example of why you would reinstroduce the form create.

chees, tom.