namespace WinFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
string message = "Do you want to close this window?";
string title = "Close Window";
DialogResult result = MessageBox.Show(message, title, MessageBoxButtons.YesNo);
if (result == DialogResult.Yes)
{
Close();
}
else
{
label1.Text = "No";
}
}
}
}
/*
* run:
*
*
*
*/