how to write code for closing windows when close button is clicked

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3.00/5 (2 votes)

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hi for window close button, what is the code to ask for exit before closing the form?if user accepts,close the form,if not, stay in window.

thanks

Posted 5-Mar-12 12:39pm

FM7

Updated 5-Mar-12 12:56pm

Shahin Khorshidnia

v2

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2 solutions

Solution 1

[Spam content removed, offender's account disabled — SA]

Posted 5-Mar-12 12:51pm

gulbrightelis

Updated 5-Mar-12 16:02pm

v2

Comments

FM7 5-Mar-12 18:56pm

what is that!!?

Shahin Khorshidnia 5-Mar-12 18:57pm

Don't you know? It's s spam!

Sergey Alexandrovich Kryukov 5-Mar-12 22:03pm

Next time, please mark is as spam (red flag) and also report to:
http://www.codeproject.com/Forums/1652005/Spam-Watch.aspx
--SA

Shahin Khorshidnia 6-Mar-12 4:53am

I did!
:D

Sergey Alexandrovich Kryukov 7-Mar-12 1:03am

Great!

I remember very well that it's better to destroy bombers and fighter on the airports; when they launch, it's way more difficult.

--SA

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Shahin Khorshidnia · Accepted Answer · 2012-03-05T12:56:00

Solution 2

Hello

In FormClosing event

C#

private void MyForm_FormClosing(object sender, FormClosingEventArgs e)
{
    if (MessageBox.Show("Are you sure to close the form?",
          "Question", 
              MessageBoxButtons.YesNo, 
                   MessageBoxIcon.Question) != System.Windows.Forms.DialogResult.Yes)
        e.Cancel = true;
}

Posted 5-Mar-12 12:56pm

Shahin Khorshidnia

Updated 5-Mar-12 12:59pm

v2

Comments

FM7 5-Mar-12 18:58pm

sepasgozaram shahin jan

Shahin Khorshidnia 5-Mar-12 19:04pm

Mer30

Sergey Alexandrovich Kryukov 5-Mar-12 22:09pm

In general case, you should also check e.CloseReason, like:

if (e.CloseReason == CloseReason.UserClosing) //... the rest of your code in the body of the handler method.

MyForm_FormClosing name is a violation of Microsoft naming conventions. This is auto-generated names. All such names should be renamed to something semantic. For answers and many other cases, it's the best to use anonymous handlers (no name, no problem :-)

this.FormClosing += (sender, eventArgs) => { PreventClosing(s); } //no need to use unused sender, for example...

So, overall, how can I vote? OK, a 4.

Cheers,
--SA

Shahin Khorshidnia 6-Mar-12 5:07am

Thanks Sa firstly for the perfect criticism, secondly for upvoting.
I had not regarded the point, and yes it's better to use an anonymous handler.

Sergey Alexandrovich Kryukov 7-Mar-12 0:57am

I'm very happy to hear that from you.
Thanks for reading carefully and understanding.
Cheers,
--SA