Asking for confirmation when “X” button is clicked

Question

The problem is that the messagebox with \"sure you wanna close?\" does pop up, but when I click \"no\", it still proceeds to close the program. Any suggestions? Here\'s my c

Answer 1

protected Boolean CanClose(Boolean CanIt)
{
   if(MessageBox.Show("Wanna close?", "Cancel Installer", MessageBoxButtons.YesNo,       MessageBoxIcon.Question).ShowDialog() == DialogResult.Yes)
   {
      // Yes, they want to close.
      CanIt = true;
   }
   else
   {
     // No, they don't want to close.
     CanIt = false;
   }

   return CanIt;
}

protected override void OnFormClosing(FormClosingEventArgs e)
{
    if(CanClose(false) == true)
    {
       this.Dispose(true);
    }
    else
    {
       e.Cancel = true;
    }
}

I'm unsure of how to handle the other scenario you mentioned (handling the 'X' click). Maybe you could do something like this (psuedo-code):

// IF CLICKED YES
   THEN CLOSE
// ELSE-IF CLICKED NO
   THEN DO NOTHING
// ELSE
   THEN DO NOTHING