专家坐堂-foxtable同时生成多张图改如何做Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

Dim cmd As New SQLCommand

Dim dt As DataTable

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 t As Table = Tables("统计表") \'定义一个变量t引用数据表

Chart =Forms("displayinchart").Controls("Chart1")\' 引用窗口中的图表

Chart.ChartType = ChartTypeEnum.Bar \'图表类型改为Bar(条形)

Chart.SeriesList.Clear() \'清除图表原来的图系

Series.TooltipText = "X = {#XVAL}, Y = {#YVAL}"

cmd.CommandText ="Se lect DISTINCT 第四列,第五列,第六列,第七列,第八列,第九列 from {统计表} where val(第四列)=i"

dt = cmd.ExecuteReader

Dim o = Forms("displayinchart").Controls("Chart1").TabPages.add("Garray" & i, "Garray" & i)

Dim cht = Forms("displayinchart").CreateControl("chart" & i, ControlTypeEnum.Chart)

cht.Dock = 5

o.AddControl(cht)

Chart =Forms("displayinchart").Controls("Chart"& i) \'引用窗口中的图表

Chart.ChartType = ChartTypeEnum.Bar \'图表类型改为Bar(条形)

Chart.SeriesList.Clear() \'清除图表原来的图系

For Each c As Col In t.Cols

If c.Name <> "第五列" Then

Series = Chart.SeriesList.Add() \'增加一个图系

Series.Text = c.Name \'设置图系的标题

Series.Length = t.Rows.Count \'设置图系的长度

For r As Integer =0 To t.Rows.Count-1 \'指定每个数据点的位置

Dim sta As Row = Tables("统计表").Rows(i)

Series.X(r) = r

Series.Y(r) = t.Rows(r)(c.Name)

End If

For r As Integer = 0 To t.Rows.Count - 1

Chart.AxisX.SetValueLabel(r, t.Rows(r)("第五列")) \'指定字符表示

Chart.AxisX.AnnoWithLabels = True \'启用字符标示

Chart.VisualEffect = True \'加上这一行,让你的图表更漂亮

Chart.LegendVisible = True \'显示图列

Chart.LegendCompass= CompassEnum.South \'图列显示在南方(底端)