Closing Form

Can anyone help me out from closing one form from another form, may be Form1 was my first form and i have added Form2 to that application as new item, now i want that when anyone clicks on the "Show Form2" button, Form2 should be showed and Form1 should get closed. Please help me out soon.:)

From first form:

Code:

---

        private void button1_Click_1(object sender, EventArgs e)
        {
            Form2 frm = new Form2();
            this.Visible=false;
            frm.Show();
        }

---

From second form:

Code:

---

private void Form2_FormClosed(object sender, FormClosedEventArgs e)
{
Application.Exit();
}

---

How about closing the main application and before closing you want to do some processing. For example, before closing all created files must be deleted.
In C++ you can do that in the constructor of the main class, but how is that is Visual C#?

Ok, I got it:

private void MainMap_FormClosed(object sender, FormClosedEventArgs e)
{
}

Create eventhandler in MainForm.designer by dubbleclicking in the propperty item. and do some terminating processes.