专家坐堂-[求助] 手动设计筛选树，用户“入库员”打开窗口后，出现错误提示？（问题项目已上传！）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!

\'首先生成统计表

Dim dt As DataTable

Dim b As New GroupTableBuilder("统计表1",DataTables("客户表"))

b.Groups.AddDef("客户")

b.Groups.AddDef("工序")

b.Groups.AddDef("品名规格")

b.Totals.AddDef("客户",AggregateEnum.Count, "个数")

dt = b.Build(False) \'参数设置为False,生成一个临时表,不在主界面显示

\'然后根据统计表生成目录树

Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")

trv.BuildTree(dt, "客户|工序|品名规格")

trv.StopRedraw

For Each nd As WinForm.TreeNode In trv.AllNodes

Dim Product As String = nd.DataRow("客户")

Dim gx As String = nd.DataRow("工序")

Dim pmgg As String = nd.DataRow("品名规格")

Select Case nd.Level

Case 0

nd.Text = nd.text & "(" & dt.Compute("Sum(个数)","客户 = \'" & Product & "\'") & "条)"

Case 1

nd.Text = nd.text & "(" & dt.Compute("Sum(个数)","客户 = \'" & Product & "\' And 工序 = \'" & gx & "\'") & "条)"

Case 2

nd.Text = nd.text & "(" & dt.Compute("Sum(个数)","客户 = \'" & Product & "\' And 工序 = \'" & gx & "\' And 品名规格 = \'" & pmgg & "\'") & "条)"

Case 3

nd.Text = nd.text & "(" & nd.DataRow("个数") & "条)"

End Select

trv.Nodes.Insert("显示所有行","显示所有行(" & dt.Compute("Sum(个数)") & "条)",0)

trv.ResumeRedraw

目录树控件的NodeMouseDoubleClick事件代码：

Dim Filter As String

Dim dr As DataRow = e.Node.DataRow \'获取生成此节点的行

If e.Node.Text <> "显示所有行" Then

Select Case e.Node.Level

Case 0

Filter = "[客户] = \'" & dr("客户") & "\'"

Case 1

Filter = "[客户] = \'" & dr("客户") & "\' And [工序] = \'" & dr("工序") & "\'"

Case 2

Filter = "[客户] = \'" & dr("客户") & "\' And [工序] = \'" & dr("工序") & "\' And [品名规格] = \'" & dr("品名规格") & "\'"

End Select

End If

e.Form.controls("对账单").Table.Filter = Filter

测试结果：

用户“入库员”打开窗口后，出现错误提示：

此主题相关图片如下：1.png

问题项目上传：

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