private void ClearAll() { Boolean checkPayment = (Convert.ToDouble(label4.Text) >= Convert.ToDouble(label6.Text)); Boolean clearConfirm = false; if (checkPayment == true) { clearConfirm = true; } else { // Warning Window ConfirmWindow CW = new ConfirmWindow(); CW.ShowDialog(); if (CW.getResponse() == DialogResult.OK) { clearConfirm = true; } else { } } if (clearConfirm == true) { dataGridView1.Rows.Clear(); new MainDatabase().InteractDB_resetDiscStat(); label4.Text = "0.00"; label6.Text = "0.00"; label8.Text = "0.00"; } }