private void pictureBox3_Click(object sender, EventArgs e)
        {
            method method1      = new method(this.textBox1.Text, int.Parse(this.textBox2.Text), this.textBox2.PasswordChar);
            char   PasswordChar = method1.showPassword();

            this.textBox2.PasswordChar = PasswordChar;
        }
        private void button1_Click(object sender, EventArgs e)
        {
            method method1 = new method(this.textBox1.Text, int.Parse(this.textBox2.Text), this.textBox2.PasswordChar);

            method1.login();
        }