private void TienDVu_ValueChanged(object sender, EventArgs e)
{
DichVuControl dvctrl = new DichVuControl();
QUANLYKHACHSAN.BusinessObject.DanhSachSuDungDichVuInFo dsi = ctrl.LayDSSuDungDVu(cmbMadichvu.SelectedValue.ToString());
QUANLYKHACHSAN.BusinessObject.DichVuInFo dvi = dvctrl.LayMaDichVu(dsi.MaDichVu);
float dongia = dvi.DonGia;
int soluong = dsi.SoLuong;
float tien = 0;
tien = tien + (dongia * soluong);
//numTienDVu.Value = tien;
//numTienDVu.Value=(numSoLuong.Value*dvi.DonGia);
}
private void cmbMaSDDVu_SelectedIndexChanged(object sender, EventArgs e)
{
DanhSachSuDungDichVuControl dsdvctrl = new DanhSachSuDungDichVuControl();
if (cmbMaSDDVu.SelectedValue != null)
{
QUANLYKHACHSAN.BusinessObject.DanhSachSuDungDichVuInFo dsi = dsdvctrl.LayDSSuDungDVu(cmbMaSDDVu.SelectedValue.ToString());
int solg = dsi.SoLuong;
DichVuControl dvctrl = new DichVuControl();
QUANLYKHACHSAN.BusinessObject.DichVuInFo dvi = dvctrl.LayMaDichVu(dsi.MaDichVu);
float dongia = dvi.DonGia;
float tien = solg * dongia;
txtTienDVu.Text = tien.ToString();
}
}