12 replies to this topic

[giannis123456789]

i have a problem in a program in which i use on closing event in order to trap the X button like above :
this.closing += new System.ComponentModel.CancelEventHandler(this.Form1_Closing)

The compiler (visual C#) underlines the word 'closing' as an error and tells me that there is no definition for closing and maybe i am missing a using directive.

Does anyone know which is that directive ?

Any help would be fully appreciated
Thanks

[CommittedC0der]

I don't understand what your asking, are you try to cancel the form closing? If so you can use this inside your closing event.

 e.Cancel = true;

[giannis123456789]

Yes i want to cancel the form from closing with the 'closing' event but the compiler underlines the word closing
like an error and it says that there is no definition 'closing' and maybe i am missing a using directive at the top.
If you know which using directive is that or anything i could do to avoid this error please tell me..

Thanks

[CommittedC0der]

OK well, IDK why your useing that "this.closing += new System.ComponentModel.CancelEventHandler(this.Form 1_Closing)" deal but just add this code to your form closing event:

 DialogResult result = MessageBox.Show("Are sure you want to quit?", " . . . ", MessageBoxButtons.YesNo);
           switch (result)
           {
               case DialogResult.Yes:
                   break;

               case DialogResult.No:
                   e.Cancel = true;
                   break;
           }

It just displays a messagebox asking if you want to quit, if "yes" close if "no" don't close.

[giannis123456789]

The reason i use this code "this.closing += new System.ComponentModel.CancelEventHandler(this.Form 1_Closing)"
is to create the event for closing. I added the code you gave me to the event but now the problem is that the event is not called at all and i dont understand why.
The code I have used for all the closing event is that :

[BrowsableAttribute(false)]
public event CancelEventHandler Closing;
......
......
private void Form1_Load(object sender, EventArgs e)
{

this.Closing +=new CancelEventHandler(Form1_Closing);
}

void Form1_Closing(object sender,System.ComponentModel.CancelEventArgs e)
{
DialogResult result = MessageBox.Show("Are sure you want to quit?", " . . . ", MessageBoxButtons.YesNo);
switch (result)
{
case DialogResult.Yes:
break;

case DialogResult.No:
e.Cancel = true;
break;
}
}

[CommittedC0der]

OK I'll show you how to make the event work correctly:
First select your form go into its properties, and on the very top on the bar there should be a lighting bolt, click it, what that does is gives you a list of events you can create for the form so just find the formClosing event and double click it, and it should create this:

[COLOR=#0600FF]private[/COLOR] [COLOR=#0600FF]void[/COLOR] Form1_FormClosing[COLOR=#000000]([/COLOR][COLOR=#FF0000]object[/COLOR] sender, FormClosingEventArgs e[COLOR=#000000])[/COLOR]        [COLOR=#000000]{[/COLOR]
 
        [COLOR=#000000]}[/COLOR]

Then just add the code I gave you(or your own) and it should work. ;)

[COLOR=#0600FF]private[/COLOR] [COLOR=#0600FF]void[/COLOR] Form1_FormClosing[COLOR=#000000]([/COLOR][COLOR=#FF0000]object[/COLOR] sender, FormClosingEventArgs e[COLOR=#000000])[/COLOR]         [COLOR=#000000]{[/COLOR]
   DialogResult result = MessageBox.Show("Are sure you want to quit?", " . . . ", MessageBoxButtons.YesNo);
           switch (result)
           {
               case DialogResult.Yes:
                   break;

               case DialogResult.No:
                   e.Cancel = true;
                   break;
           }
         [COLOR=#000000]}[/COLOR]
 

[gokuajmes]

Lol what do you know :lol:

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            MessageBox.Show("You are closing the form Because:" + e.CloseReason.ToString());
        }

replace Form1 with the name of your form then put the code in CodeFile.

+rep a day Keeps lousy posters from CodeCall away

[CommittedC0der]

Quote

Lol what do you know :lol:

private void Form1_FormClosing(object sender, FormClosingEventArgs e)

 	        {
            MessageBox.Show("You are closing the form Because:" + e.CloseReason.ToString());
        }

replace Form1 with the name of your form then put the code in CodeFile.

+rep a day Keeps lousy posters from CodeCall away

Is that what he's trying to do? I still can't understand what he's saying.:w00t:

[gokuajmes]

thegamemaker said:

I still can't understand what he's saying.:w00t:

I am in the same Fix ,:mad:
I hate people who abandon the post after making a appeal

[giannis123456789]

thanks a lot. That was what i was trying to do but with the wrong way...:p
thanks again

[giannis123456789]

thanks a lot. That was what i was trying to do but with the wrong way...:p
thanks again

[gokuajmes]

Glad you got your Answer ^^