Dim t As Table = Tables("在职员工")
Dim g As Subtotalgroup
t.SubtotalGroups.Clear()
t.GroupAboveData = False
t.TreeVisible = False
g = New Subtotalgroup
g.Aggregate = AggregateEnum.Sum
g.Caption = "{0}"
t.SubtotalGroups.Add(g)
t.Subtotal()
Dim Filter As String
If Filter > "" Then
Tables("在职员工").Filter = Filter
End If
Dim r As Row
For i As Integer = 0 To t.Rows.Count(True) - 1
r = t.Rows(i,True)
If r.IsGroup '如果是分组行
Dim f As String = "[" & "婚姻状况" & "] = '" & r("[" & "婚姻状况" & "]") & "'"
Dim v As String = "[" & "统计列" & "] = '" & r("[" & "统计列" & "]") & "'"
r("[" & "婚姻状况" & "]") = "[" & "婚姻状况" & "]:" & r("[" & "婚姻状况" & "]") & v
End If
Next
Dim b1 As New GroupTableBuilder("统计表9",DataTables("在职员工"))
b1.Groups.AddDef("[" & "婚姻状况" & "]","" & "婚姻状况" & "")
b1.Totals.AddDef("[" & "统计列" & "]")
b1.Subtotal = True
b1.Filter = Filter
b1.Build
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
Dim tbl As DataTable = DataTables("统计表9") '定义一个变量tbl引用数据表
Dim lst As List(Of String) = tbl.GetValues("婚姻状况") '获得产品名称集合
Chart = e.Form.Controls("Chart9") ' 引用窗口中的图表
Chart.ChartType = ChartTypeEnum.Bar '图表类型该为Bar(条形)
Chart.SeriesList.Clear() '清除图表原来的图系
chart.AxisX.ClearValueLabel
Series = Chart.SeriesList.Add() '增加一个图系
Series.Length = lst.Count '设置图系的长度
此主题相关图片如下:qq图片20180110170933.png
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Series.DataLabelText = "{#YVAL}"
For i As Integer = 0 To lst.Count - 1 '指定每个数据点的位置
Series.X(i) = i '指定水平坐标
Series.Y(i) = tbl.Compute("Sum(" & "统计列" & ")","[" & "婚姻状况" & "] = '" & lst(i) & "'") '指定垂直坐标
Chart.AxisX.SetValueLabel(i, lst(i)) '指定字符表示
Next
Chart.AxisX.AnnoWithLabels = True '启用字符标示