protected void btnSearch_Click(object sender, EventArgs e)
{
DateTime beginDate = Convert.ToDateTime(txtPlanStartTime.Text.Trim());
DateTime endDate = Convert.ToDateTime(txtPlanEndTime.Text.Trim());
DataTable dt = GroupInfo.GetGroupGrainTotal(beginDate, endDate);
if (dt.Rows.Count > 0)
{
Series series1 = chart2.Series[0];
for (int i = 0; i < dt.Rows.Count; i++) //向数据集绑定数据
{
series1.Points.AddXY(Convert.ToDateTime(dt.Rows[i]["opardate"]).ToShortDateString(), dt.Rows[i]["total"].ToString());
}
while (this.chart2.Series[0].Points.Count > dt.Rows.Count)
{
// Remove series points
foreach (Series s in this.chart2.Series)
{
s.Points.RemoveAt(0);
}
}
chart2.ChartAreas["ChartArea1"].AxisY.Title = "重量（单位：吨）";
chart2.ChartAreas["ChartArea1"].AxisX.Title = "截至日期";
}
}