private void btnDelete_Click(object sender, EventArgs e) { int BillStatus = -1; int SupID = int.Parse(MyCommon.GetSelectedID(cmbSupplier, true)); BillStatus = MyBill.GetBillStatus(cmbGRN.Text, SupID); string respond = ""; if (MessageBox.Show("Do you want to delete current record ? ", "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.Yes) { if (BillStatus == 3) { Program.VerningMessage("you cannot delete this bill it is already accounted"); } else { respond = MyBill.DeleteBilling(cmbGRN.Text, SupID); if (respond == "True") { Program.InformationMessage("Record Deleted Successfully"); ClearFullscreen(); } else { Program.VerningMessage(respond); } } } }