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Editorial Team
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Asked: 2026-05-26T15:45:56+00:00

I have a custom made dialog winform. On it I have a label, textbox

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I have a custom made dialog winform. On it I have a label, textbox and 2 buttons (OK and Cancel). It also declares and defines overloaded execute methods for passing different parameter list.

Dialog Winform is called as follows:

var theDialog := new InputMsgBox;

if theInputB.Execute('Awesome StackOverflow','Enter Text?',s,var s) = DialogResult.OK then
begin
  Invalidate;
  SetText(s);
end;

Dialog Winform execute is defined as follow:

method InputMsgBox.Execute(Title, theMessage, defaultanswer:string;var thevalue:string): DialogResult;
begin
    result := DialogResult.Cancel;

    Requesttext.Text:=themessage;
    Requesttext.Enabled:=true;
    Requesttext.Visible:=true;
    InputTextBox.Text:=defaultanswer;
    InputTextBox.Enabled:=true;
    InputTextBox.Visible:=true;

    CancelBtn.Enabled:=true;
    CancelBtn.Visible:=true;
    Okbtn.Enabled:=true;
    Okbtn.Visible:=true;

    self.ShowDialog;
    Result := self.DialogResult;
    thevalue:=InputTextBox.Text;
end;

When execute method returns back to the caller, it always returns DialogResult.Cancel even when you click on OKBtn.

The Buttons’ dialogresult are set accordingly.

I have set the AcceptButton and CancelButton on the Dialog winform.

I can’t figure out why the showdialog method is always returning DialogResult.Cancel.

UPDATE After doing some test, I found out that my other custom-made dialog window works fine when display by calling showdialog = DialogResult.Ok. So, I checked both of them to see if there are some differences in their properties setting and there is absolutely no difference. I don’t understand it.
Thanks in advance,

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1 Answer

  1. Editorial Team

    I figured out my problem. This is why Dialog Form always returned Cancel DialogResult. For my custom-made dialog window, I also implemented Form_Closing event method. Apparently, you are not to have an event that will jump the program counter out of its steps when opening a dialog using ShowDialog method. So, it was already closed before it got a chance to read its DialogResult. Therefore, my program only saw the default DialogResult for my Dialog Window.

    Once I removed the Form_Closing event method, it is working the way it is supposed to.

    Instead of deleting the question, I am answering it and I feel it will help others.

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