Form Closing Event in Windows Form?

Question

1.00/5 (1 vote)

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C#

Public Class1()
{
   this.FormClosing += OnFormClosing();
}

private void OnFormClosing(object Sender, EventArgs e)
{
   base.OnFormClosing(e);
   if (e.CloseReason == CloseReason.WindowsShutDown)
   {
      form_closing();//here i wrote my function to happen
   }
}

private void formcloasing()
{
   Class cls = new cls();
   cls.RemovefromOpenedChats((int)this.Tag);
}

Issue which I am facing:
No overload for method 'OnFormClosing' takes 0 arguments

Solution I need?
How to write a function in windows form while clicking red close(X) button?

Posted 4-Jun-13 20:17pm

riodejenris14

Updated 4-Jun-13 20:23pm

_Amy

v4

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3 solutions

Solution 1

This is the method you are making call from private void OnFormClosing(object Sender, EventArgs e)

C#

private void formcloasing()
{
Class cls = new cls();
cls.RemovefromOpenedChats((int)this.Tag);
}

..and you're passing a parameter

C#

base.OnFormClosing(e);

Which is completely invalid.

Posted 4-Jun-13 20:24pm

Prasad_Kulkarni

Comments

riodejenris14 5-Jun-13 2:27am

Then how to write a function while clicking the red close(X) button in the windows form?

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_Amy · Accepted Answer · 2013-06-04T20:24:00

Solution 2

Try this:

C#

 protected override void OnFormClosing(FormClosingEventArgs e)
{
    //base.OnFormClosing(e);
    if (e.CloseReason == CloseReason.WindowsShutDown)
    { 
        //Do your stuff here
    }
}

--Amit

Posted 4-Jun-13 20:24pm

_Amy

Updated 4-Jun-13 20:36pm

v2

Comments

riodejenris14 5-Jun-13 2:27am

Then how to write a function while clicking the red close(X) button in the windows form?

_Amy 5-Jun-13 2:37am

Please see my updated answer.

riodejenris14 5-Jun-13 2:38am

thnx _Amy!!!

_Amy 5-Jun-13 2:49am

You can hit "Accept Solution" button if it worked for you.

riodejenris14 · Accepted Answer · 2013-06-04T20:37:00

Solution 3

Public Constructor_Class()
{
this.FormClosing+=OnFormClosing();
}
public void OnForm_Closing(object Sender,EventArgs e)
{
//your function;
}

Posted 4-Jun-13 20:37pm

riodejenris14