private void button2_Click(object sender, EventArgs e)
        {
            if (txtPass.Text != txtConfirm.Text)
            {
                MessageBox.Show("The Password is not identical!");
                txtPass.Clear();
                txtConfirm.Clear();
                return;
            }
            int p = 0;

            if (RBnormal.Checked == true)
            {
                p = 3;
            }
            else if (RBsub.Checked == true)
            {
                p = 2;
            }
            else
            {
                MessageBox.Show("Please Select What you want to register as.");
                return;
            }
            if (ControllerObj.Add_New_Acc(txtUserName.Text, txtPass.Text, p) != 0)
            {
                MessageBox.Show("You have successfully registerd");
            }
            else
            {
                MessageBox.Show("Sorry this username is already exist");
            }
        }