Dim Chart As WinForm.Chart '定义一个图表变量
Dim Series As WinForm.ChartSeries '定义一个图系变量
Chart = e.Form.Controls("Chart1") ' 引用窗口中的图表
Chart.VisualEffect = True '加上这一行,让你的图表更漂亮
Chart.ChartType = ChartTypeEnum.Bar '图表1类型该为Bar(条形)
Chart.ChartType2 = ChartTypeEnum.XYPlot '图表2类型该为线形
Chart.DataSource = "统计表" '设置绑定表
Chart.SeriesList.Clear() '清除图表原来的图系
Series = Chart.SeriesList.Add() '增加第一个图系
Series.Text = "最高分"
Series.X.DataField = "班级" 'X轴绑定到产品列
Series.Y.DataField = "总分_最高分" 'Y轴绑定到数量列
Series.TooltipText = "X = {#XVAL}, Y = {#YVAL}"
Series.LineColor = Color.Blue '设置该图系的颜色
Series = Chart.SeriesList.Add() '增加第二个图系
Series.Text = "最低分"
Series.X.DataField = "班级" 'X轴绑定到产品列
Series.Y.DataField = "总分_最低分" 'Y轴绑定到数量列
Chart.SeriesList2.Clear() '清除图表原来的图系
Series = Chart.SeriesList2.Add() '给图表2增加一个图系
Series.Text = "平均分"
Series.X.DataField = "班级" 'X轴绑定到产品列
Series.Y.DataField = "总分_平均分" 'Y轴绑定到数量列
Series.DataLabelText = "{#YVAL}"
Chart.LegendVisible = True '显示图列
Chart.LegendCompass= CompassEnum.South '图列显示在南方(底端)