Hi Ahmad,

You do use the form's Closing event but just set the Cancel property to True. Here is some sample code:

Private Sub Form1_Closing(ByVal sender As Object, _
    ByVal e As System.ComponentModel.CancelEventArgs) _
    Handles MyBase.Closing
  If (MessageBox.Show("Are you sure to close the application?", _
    "My Application", MessageBoxButtons.YesNo, MessageBoxIcon.Question, _
         MessageBoxDefaultButton.Button2) = DialogResult.No) Then
       e.Cancel = True
  End If
End Sub

>Thank you Ron,
>
>But what about the "X" control on the top right of rhe form (the close button), is there any handeler for it.
>I tryed to use these propireties of the form (OnClosed & OnClosing) it's okey but assume I need to ask the user to confirm closing the form by displaying a Messagebox.show ("Are you sure you want to exit?"), ........
>message if the answer is "No" simply I can say Exit Sub, that if I am using the btnExit sub.
>
>But if the user cliks on the "X" button any code I but in the (OnClosed & OnClosing) to cancel the exit action will fail.
>
>any idea?
>
>
>
>>Ahmad,
>>You need to call the PerformClick method to raise a button's click event, as in:
>>
>>btnExit.PerformClick()
>>
>>In the example you had, you might also consider using the ButtonCancel property for the form, so when they press escape it calls the button's click method, as in:
>>
>>Me.CancelButton = btnExit
>>
>>Ron