HttpRequest中，SQLGroupTableBuilde的几个问题 - 专家坐堂 - 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!

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HttpRequest事件

Dim fl As String = "d:\web\" & e.path

If filesys.FileExists(fl)

Dim idx As Integer = fl.LastIndexOf(".")

Dim ext As String = fl.SubString(idx)

Select Case ext

Case ".jpg",".gif",".png",".bmp",".wmf",".js",".css" ,".html",".htm",".zip",".rar"

e.WriteFile(fl)

Return '这里必须返回

End Select

End If

Select Case e.Path

Case "table.htm"

Dim wb As New WeUI

Dim bd1 As New GroupTableBuilder("统计表1",DataTables("进货单"))

Dim dt1 As fxDataSource

bd1.Groups.AddDef("型号") '根据型号分组

bd1.Totals.AddDef("数量","进货_数量") '对数量进行统计

bd1.Totals.AddDef("金额","进货_金额") '对金额进行统计

dt1 = bd1.BuildDataSource()

Dim bd2 As New GroupTableBuilder("统计表2",DataTables("销售单"))

Dim dt2 As fxDataSource

bd2.Groups.AddDef("型号") '根据型号分组

bd2.Totals.AddDef("数量","销售_数量") '对数量进行统计

bd2.Totals.AddDef("金额","销售_金额") '对金额进行统计

dt2 = bd2.BuildDataSource()

Dim bd3 As New GroupTableBuilder("统计表3",DataTables("退货单"))

Dim dt3 As fxDataSource

bd3.Groups.AddDef("型号") '根据型号分组

bd3.Totals.AddDef("数量","退货_数量") '对数量进行统计

bd3.Totals.AddDef("金额","退货_金额") '对金额进行统计

dt3 = bd3.BuildDataSource()

dt1.Combine("型号",dt2,"型号") '将销售统计数据组合到进货统计数据

dt1.Combine("型号",dt3,"型号") '将退货统计数据组合到进货统计数据

With wb.AddTable("","Table1")

.Alternate = 3

Dim nms() As String = {"型号","进货_数量","进货_金额","销售_数量","销售_金额","退货_数量","退货_金额"}

.Head.AddRow(nms)

For Each r As System.Data.DataRow In dt1.Rows

With .Body.AddRow()

For Each nm As String In nms

If r(nm) Is System.DBNull.Value Then

.AddCell("")

Else

.AddCell(r(nm))

End If

End With

e.WriteString(wb.Build)

End Select

主题：HttpRequest中，SQLGroupTableBuilde的几个问题