private void UC_ThongKe_Load(object sender, EventArgs e) { comboBox1.DataSource = HoaDonBUS.GetNamHD(); comboBox1.ValueMember = "YEAR"; try { chart1.DataSource = HoaDonBUS.GetThangHD(int.Parse(comboBox1.SelectedValue.ToString())); chart1.Series["chartthu"].XValueMember = "thang"; chart1.Series["chartthu"].YValueMembers = "tien"; } catch (Exception ex) { MessageBox.Show(ex.Message); } try { chart2.DataSource = PhieuNhapBUS.GetThangPN(int.Parse(comboBox1.SelectedValue.ToString())); chart2.Series["chartchi"].XValueMember = "thangPN"; chart2.Series["chartchi"].YValueMembers = "tienPN"; } catch (Exception ex) { MessageBox.Show(ex.Message); } lbdoanhthu.Text = HoaDonBUS.TongDoanhThu(int.Parse(comboBox1.SelectedValue.ToString())).ToString(); lbChiPhi.Text = PhieuNhapBUS.TongChiPhi(int.Parse(comboBox1.SelectedValue.ToString())).ToString(); }