主题：[求助]仿照统计筛选，出现的问题

窗口表事件

窗口与控件事件

订刊分级统计表_AfterLoad

'首先生成统计表

Dim dt As DataTable

Dim b As New GroupTableBuilder("订刊分级统计表",DataTables("订户信息表"))

b.Groups.AddDef("一级")

b.Groups.AddDef("二级")

b.Groups.AddDef("三级")

b.Totals.AddDef("份数") '添加份数列用于统计

b.Build '生成统计表

'MainTable = Tables("订刊分级统计表") '打开生成的统计表 '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

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

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

trv.BuildTree(dt, "一级|二级|三级")

trv.StopRedraw

For Each nd As WinForm.TreeNode In trv.AllNodes

    Dim one As String = nd.DataRow("一级")

    Dim two As String = nd.DataRow("二级")

    Dim three As String = nd.DataRow("三级")

    Select Case nd.Level

        Case 0

            nd.Text = nd.text & "(" & dt.Compute("Sum(份数)","一级 = " & one) & "份)"

        Case 1

            nd.Text = nd.text & "(" & dt.Compute("Sum(份数)","一级 = " & one & " And 二级 = " & two) & "份)"

        Case 2

            nd.Text = nd.text & "(" & nd.DataRow("份数") &  "份)"

    End Select

Next

trv.Nodes.Insert("加载所有行","加载所有行(" & dt.Compute("Sum(份数)") & "份)",0)

trv.ResumeRedraw

订刊分级统计表_TreeView1_NodeMouseDoubleClick

Dim Filter As String = ""

If e.Node.Name <> "加载所有行" Then '要用Name属性,不能用Text属性

    Dim one As String = e.Node.DataRow("一级")

    Dim Two As String = e.Node.DataRow("二级")

    Dim three As String = e.Node.DataRow("三级")

    Select Case e.Node.Level

        Case 0

            Filter ="一级 = " & one

        Case 1

            Filter ="一级 = " & one & " And 二级 = " & two

        Case 2

            Filter ="一级 = " & one & " And 二级 = " & two & " And 三级 = '" & three & "'"

    End Select

End If

DataTables("订户信息表").LoadFilter = Filter

DataTables("订户信息表").Load()