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designing the execute method in a dialog

Posted on 1998-06-05
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Last Modified: 2010-04-06
I want to design a dialog component that with an execute method like in Delphi own dialog. When I call :
if dialog.execute then
...

I want to program to wait in the dialog until the user press the ok button. How can I do that??
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Question by:pjroy
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Marcius earned 40 total points
ID: 1350722
This is simple answer. I once had to solve this problem, and came to a solution using threads and wait for events etc. However, I have a simple solution for you.

function MyDialogue.Execute : boolean;
begin

  //Set up code here

  //Whatever code you want here

  Result := (ShowModal = mrOk);

end;

Then set the modal result value of your button to mrOk. Your dialogue will process the execute method, reach the ShowModal call, then allow your user to play with the dialogue whilst it waits for a modal result.

Yes ! It really is that simple :)
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Author Comment

by:pjroy
ID: 1350723
Ok, I have deleted the ok botton. My dialog is a form with no border containing a DBGrid. The user can press ESC to quit, the arrow to browse a record, and enter to select it and quit.

How can I do the same thing than with the button but without having a button on my form.
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Expert Comment

by:Marcius
ID: 1350724
You can set ModalResult anywhere in your code, it doesn't have to be bound to a button.

e.g.

  if Count > 0 then ModalResult = true;

This will have the same effect as tying the result to a button press. This is really much more simple than you thought isn't it ?
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