How in c# to do the correct handling clicks?

private void zapusk_form2(object sender, EvantArgs e)
{ 
Thread tr = new Thread(go)
tr.Start();
}
public void go()
{
 Autent Thread = new Thread(aut);
autent.Start();
.......
}
public void aut()
 { 
 Auts Form2 = new Form2();
auts.Show();
 auts.button1.Click += new EventHandler(metod);
}
 public string login;
 public string pass;
 private void metod(object sender, EventArgs e)
{
 login = auts.textBox1.Text;
 pass = auts.textBox2.Text;
auts.Hide();

 }