C# Application Form Closing Event Question

Sometimes you have a program that you would prefer someone not close without confirming they truly meant to close it.

This script will assist in providing a question before the program simply closes.

private void fm1_FormClosing(object sender, FormClosingEventArgs e)
		{
			DialogResult dialogResult = MessageBox.Show("Are you sure you want to close?", Application.ProductName, MessageBoxButtons.YesNo);
			if (dialogResult == DialogResult.Yes)
			{
				// Truly Close
				e.Cancel = false;
			}
			else if (dialogResult == DialogResult.No)
			{
				// Oops Don't close
				e.Cancel = true;
			}
		}