private void cbDoanhThu_Nam_SelectedIndexChanged(object sender, EventArgs e)
{
dataGridDoanhThu.Rows.Add();
int nam = int.Parse(cbDoanhThu_Nam.Text);
chartDoanhThuTheoThang.Series.Clear();
double TongTien = 0.0;
Series series = new Series
{
Name = "series2",
IsVisibleInLegend = false,
ChartType = SeriesChartType.Column
};
chartDoanhThuTheoThang.Series.Add(series);
for (int i = 1; i <= 12; i++)
{
double tien = thongKeBLL.LayDoanhThuTheoThang(i, nam);
TongTien += tien;
series.Points.Add(tien);
var p1 = series.Points[i - 1];
p1.AxisLabel = "Tháng " + i;
p1.LegendText = "Tháng " + i;
if (tien > 0)
{
p1.Label = string.Format("{0:#,###0}", tien);
}
dataGridDoanhThu.Columns[i].DefaultCellStyle.Format = "N2";
dataGridDoanhThu.Rows[0].Cells[i].Value = tien;
}
dataGridDoanhThu.Columns[0].DefaultCellStyle.Format = "N2";
dataGridDoanhThu.Rows[0].Cells[0].Value = TongTien;
}