private void cmbMaSDDVu_SelectedIndexChanged(object sender, EventArgs e)
{
DanhSachSuDungDichVuControl dsdvctrl = new DanhSachSuDungDichVuControl();
if (cmbMaSDDVu.SelectedValue != null)
{
DanhSachSuDungDichVuInFo dsi = dsdvctrl.LayDSSuDungDVu(cmbMaSDDVu.SelectedValue.ToString());
int solg = dsi.SoLuong;
DichVuControl dvctrl = new DichVuControl();
DichVuInFo dvi = dvctrl.LayMaDichVu(dsi.MaDichVu);
float dongia = dvi.DonGia;
float tien = solg * dongia;
txtTienDVu.Text = tien.ToString();
}
}
public DichVuInFo LayMaDichVu(string madv)
{
DichVuData dv = new DichVuData();
DonViControl dvctrl = new DonViControl();
LoaiDichVuControl ldvctrl = new LoaiDichVuControl();
DichVuInFo pif = null;
pif = new DichVuInFo();
DataTable tbl = dv.LayMaDSDichVu(madv);
if (tbl.Rows.Count > 0)
{
pif.MaDichVu = Convert.ToString(tbl.Rows[0]["MaDichVu"]);
pif.DonGia = Convert.ToSingle(tbl.Rows[0]["DonGia"]);
pif.MaDonVi = Convert.ToString(tbl.Rows[0]["MaDonVi"]);
pif.MaLoaiDichVu = Convert.ToString(tbl.Rows[0]["MaLoaiDichVu"]);
}
return(pif);
}
