public void Top3SPMuaNhieuTrongThang(string condition) { dataGridView1.DataSource = bus.Top3MuaMonth("SELECT TOP(3) lk.TenLK As'Tên Sản Phẩm', SUM(ct.SoLuong) AS 'Số Lượng'" + " FROM CT_HoaDonNhapHang ct, HoaDonNhapHang hd, LinhKien lk " + "where ct.MaHDNH = hd.MaHDNH and lk.MaLK = ct.MaLK and Month(hd.NgayLapHDNH) =" + condition + " " + "GROUP BY lk.TenLK ORDER BY SUM(ct.SoLuong) DESC"); }