Button Cancel u C# nece da zatvori formu

Postavio sam na formu Button Cancel ali nece da zatvori rozor.
Sta treba da podesim da bi to radilo( kao DialogResult podesio sam cancel)

Potpis

bez blama

Close();

Potpis

http://i.imgur.com/V3feW.jpg
http://on.wsj.com/H9yjz6 -- India Graduates Millions, but Too Few Are Fit to Hire

ok super sad radi
A da li postoji jos neki nacin posto na drugoj formi cancel radi a nisam kucao close();
???

Potpis

bez blama

A sta imas na drugoj formi?

Potpis

http://i.imgur.com/V3feW.jpg
http://on.wsj.com/H9yjz6 -- India Graduates Millions, but Too Few Are Fit to Hire

namespace WindowsFormsApplication2
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}

private void Form2_Load(object sender, EventArgs e)
{

}

private void button1_Click(object sender, EventArgs e)
{
poruka = textBox1.Text;
}
private string poruka;

public string Poruka
{
get { return poruka; }
set { poruka = value; }
}

private void button2_Click(object sender, EventArgs e)
{

}

private void Form2_FormClosing(object sender, FormClosingEventArgs e)
{
DialogResult rez = MessageBox.Show("Da li zelite da izadjete?", "Obavestenje", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk);
if (rez == DialogResult.No)
{
e.Cancel = true;
}
}
}

Potpis

bez blama

DialogResult radi samo kada se forma prikaze sa ShowDialog(). Mozda si jednu formu prikazao sa Show(), a drugu sa ShowDialog()?