private void btDeleteRoom_Click_1(object sender, EventArgs e) { rmBus = new RoomBUS(); RoomDTO rm = new RoomDTO(); rm.Idr = txtNameRoom.Text; rm.Name = txtNameRoom.Text; rm.Roomkind = txtKindRoom.Text; rm.Status = "Empty"; rm.Bedamount = int.Parse(txtBedsAmount.Text); rm.Cost = Decimal.Parse(txtCost.Text); bool kq = rmBus.delete(rm); if (kq == false) { MessageBox.Show("Fail!"); } else { MessageBox.Show("Sussces"); } this.loadData(); }