[C#] Implementare un form di Login

[Santino83_02]

private void button1_Click(object sender, EventArgs e)
        {

            this.Close();

//using System.Threading
            Thread nt = new Thread(new ThreadStart(myForm));
            nt.Start();
        }

        private void myForm()
        {
            Form2 form = new Form2();
            form.ShowDialog();
        }