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Modal Form

Posted on 2002-07-17
4
Medium Priority
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234 Views
Last Modified: 2010-04-04
Hello

I want to create and display a form as the ModalForm.

with TMyMoladForm.Create(Self) do begin
  ...
  ...
end;

I want to set-up some parameters in the TMyModalForm.FormCreate procedure and then I want to show the form.

But how can I to Show an error message and CLOSE or DO NOT SHOW the modal form if exception appears during TMyModalForm.FormCreate procedure executing?

Thanks
0
Comment
Question by:pmarkov
  • 2
4 Comments
 
LVL 17

Expert Comment

by:geobul
ID: 7161633
Hi,

Try this one:

procedure TForm2.FormCreate(Sender: TObject);
begin
  try
    // evaluate the conditions here
    // I've hardcoded an exception to be raised so this form will never come up
    raise ERangeError.CreateFmt('Range error', []);
  except
    // release the form
    Release;
  end;
end;

Regards, Geo
0
 

Accepted Solution

by:
Chalo earned 150 total points
ID: 7163992
Hi,

Try this

procedure TMainForm.Button1Click(Sender: TObject);
begin
  With TFormToDisplay.Create(nil) Do
    Try
      ShowModal;
    Finally
      Release;
  End
end;


Best regards Chalo
0
 

Author Comment

by:pmarkov
ID: 7164046
Thanks!
0
 
LVL 17

Expert Comment

by:geobul
ID: 7164207
The code from the accepted answer doesn't hide or close the second form if an exception occurs in its OnCreate event. The second form is always displayed. What kind of solution is this?

Regards, Geo
0

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