void LoadData() { lbTongKhachThang.Text = dbHoaDon.TKTongKhachThang() + " lượt"; lbTongTienThang.Text = dbHoaDon.TKTongTienThang(); lbTongTienNam.Text = dbHoaDon.TKTongTienNam();; lbTongKhachNam.Text = dbHoaDon.TKTongKhachNam() + " lượt"; chart1.DataSource = dbHoaDon.TKDoanhThuTungNgay(); chart1.Series["Series1"].XValueMember = "Ngay"; chart1.Series["Series1"].XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.String; chart1.Series["Series1"].YValueMembers = "TongTien"; chart1.Series["Series1"].YValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.Int32; chart2.DataSource = dbHoaDon.TKTop5MonThang(); chart2.Series["Series1"].XValueMember = "TenMon"; chart2.Series["Series1"].YValueMembers = "SoLuong"; chart3.DataSource = dbHoaDon.TKLuotKhachNgay(); chart3.Series["Series1"].XValueMember = "Ngay"; chart3.Series["Series1"].XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.String; chart3.Series["Series1"].YValueMembers = "SoLuong"; chart3.Series["Series1"].YValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.Int32; chart4.DataSource = dbHoaDon.TKDoanhThuTungThang(); chart4.Series["Series1"].XValueMember = "Thang"; chart4.Series["Series1"].XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.String; chart4.Series["Series1"].YValueMembers = "TongTien"; chart4.Series["Series1"].YValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.Int32; chart6.DataSource = dbHoaDon.TKTop5MonNam(); chart6.Series["Series1"].XValueMember = "TenMon"; chart6.Series["Series1"].YValueMembers = "SoLuong"; chart5.DataSource = dbHoaDon.TKLuotKhachThang(); chart5.Series["Series1"].XValueMember = "Thang"; chart5.Series["Series1"].XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.String; chart5.Series["Series1"].YValueMembers = "SoLuong"; chart5.Series["Series1"].YValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.Int32; }