private void HienThi() { DataTable dt = new DataTable(); if (CheckThoiGian == 1) { dt = bus.ChiTietSanPhamTheoKhachHang_Tuan(IDSanPham); } else if (CheckThoiGian == 2) { dt = bus.ChiTietSanPhamTheoKhachHang_Thang(IDSanPham); } else { dt = bus.ChiTietSanPhamTheoKhachHang_Ngay(IDSanPham, NgayDau, NgayCuoi); } msds.DataSource = dt; }