private void LoadChart() { DataTable dt = ThongKe.LoadDuLieu(); chart1.DataSource = dt; chart1.ChartAreas["ChartArea1"].AxisX.Title = "Tên Trang"; chart1.ChartAreas["ChartArea1"].AxisY.Title = "Số bài"; chart1.Series["Trang"].XValueMember = "NameRoot"; chart1.Series["Trang"].YValueMembers = "soluong"; }