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
'Tables("订单").Filter = "[部门] = '销售部'"
Tables("订单").Sort = "金额 DESC"
Dim tbl As DataTable = DataTables("订单") '定义一个变量tbl引用数据表
Dim lst As List(Of String) = tbl.GetValues("销售", "", "金额 desc")'获得产品名称集合
Chart = e.Form.Controls("Chart1") ' 引用窗口中的图表
Chart.ChartType = ChartTypeEnum.Bar
Chart.SeriesList.Clear() '清除图表原来的图系
Series = Chart.SeriesList.Add() '增加一个图系
Series.Length = lst.Count + 1 '设置图系的长度
Dim flag As Integer = 0
For i As Integer = 0 To lst.Count - 1 '指定每个数据点的位置
If i = Cint(lst.Count / 2) Then
Series.X(i) = i '指定水平坐标
'Series.Y(i) = tbl.Compute("Sum(金额)","[销售] = '" & lst(i) & "'") '指定垂直坐标
Series.Y(i) = tbl.Compute("avg(金额)", "") '指定垂直坐标
Chart.AxisX.SetValueLabel(i, "平均值") '指定字符表示
flag = 1
End If
Series.X(i+flag) = i + flag '指定水平坐标
'Series.Y(i) = tbl.Compute("Sum(金额)","[销售] = '" & lst(i) & "'") '指定垂直坐标
Series.Y(i+flag) = tbl.Compute("avg(金额)","[销售] = '" & lst(i) & "'") '指定垂直坐标
Chart.AxisX.SetValueLabel(i+flag, lst(i)) '指定字符表示
Next
Chart.AxisX.AnnoWithLabels = True '启用字符标示
Series.DataLabelText = "{#YVAL}"
加好友 
发短信
Post By：2014/3/1 19:36:00 [显示全部帖子]
