void ThemMoi()
{
DataRow row = ctrl.NewRow();
row["MaNhanPhong"] = txtMaNhanPhong.Text;
row["MaPhieuThue"] = cmbMaPThue.SelectedValue;
row["MaKhachHang"] = cmbMaKH.SelectedValue;
ctrl.Add(row);
PhieuNhanPhongControl ctrlPN = new PhieuNhanPhongControl();
if (ctrlPN.LayPhieuNhan(txtMaNhanPhong.Text) != null)
{
MessageBox.Show("Mã Phiếu này đã tồn tại !", "Phieu Nhan", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (ThamSo.LaSoNguyen(txtMaNhanPhong.Text))
{
int so = Convert.ToInt32(txtMaNhanPhong.Text);
if (so >= ThamSo.LayPhieuNhan())
{
ThamSo.GanPhieuNhan(so + 1);
}
}
ctrl.Update();
DataTable tblCTP = (DataTable)bindingNavigator1.BindingSource.DataSource;
ctpnctrl.Update();
ctrl.Save();
ctpnctrl.Save();
khctrl.Save();
ptctrl.Save();
}