How to code the close button in the form?

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Hi Guys,

Can I ask if someone have an idea on how can I write a code in the close button in the form.

Example, if the user click the close button (the red box with X) then another form that i want be show.

Thanks!

Posted 27-Nov-12 23:32pm

siasalar

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Pete O'Hanlon · Answer 1 · 2012-11-27T23:39:00

I assume you are talking about WinForms here. If you are, each window has a Closing and Closed event associated with it. What I would do is override the OnClosed implementation and show my window from there.

C#

protected override void OnClosed(EventArgs args)
{
  new NewWindow().Show();
  base.OnClosed(args);
}

Importantly from your point of view, this method is not called when the application exits, so you won't get rogue windows opening up unexpectedly.

lukeer · Answer 2 · 2012-11-27T23:39:00

Attach whatever you want to the form's OnClosing[^] event. That way you don't have to differentiate what causes the form to close ("X", Alt + F4, right-click on Taskbar, ...).

C#

override void OnClosing()
{
    SomeOtherForm otherForm = new SomeOtherForm(whatever);
    otherForm.Show();
}

How to code the close button in the form?

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