主题：[求助]自定义目录树菜单设计中碰到的拦路虎

再下一级不晓得咋个写了

 

Dim tr As WinForm.TreeView = e.Form.Controls("TreeView1")
Dim nd As WinForm.TreeNode
Dim dt As DataTable = DataTables("类目")
tr.StopRedraw()
tr.Nodes.Clear
For Each dr As DataRow In dt.datarows
        nd = tr.Nodes.Add(dr("类名"),dr("类名"))
        Dim dt1 As DataTable = DataTables("档案一类")
        Dim drs1 As List(of DataRow)
        drs1 = dt1.Select("[类名] = '" & nd.name & "'")
        For Each dr1 As DataRow In drs1
        Dim cd1 As Winform.TreeNode = nd.Nodes.Add(dr1("一类名称"),dr1("一类名称"))
        Next

            Dim dt2 As DataTable = DataTables("档案二类")
            Dim drs2 As List(of DataRow)
            drs2 = dt2.Select("[一类名称] = '" & nd.name & "'")
            For Each dr2 As DataRow In drs2
            Dim cd2 As Winform.TreeNode = nd.Nodes.Add(dr2("二类名称"),dr2("二类名称"))

            Next

Next
tr.ResumeRedraw()

 

貌似不执行

二级的似乎解决了，三级中。。。

 

Dim tr As WinForm.TreeView = e.Form.Controls("TreeView1")
Dim nd As WinForm.TreeNode
Dim dt As DataTable = DataTables("类目")
tr.StopRedraw()
tr.Nodes.Clear
For Each dr As DataRow In dt.datarows
        nd = tr.Nodes.Add(dr("类名"),dr("类名"))
        Dim dt1 As DataTable = DataTables("档案一类")
        Dim drs1 As List(of DataRow)
        drs1 = dt1.Select("[类名] = '" & nd.name & "'")
        For Each dr1 As DataRow In drs1
        Dim cd1 As Winform.TreeNode
        cd1= nd.Nodes.Add(dr1("一类名称"),dr1("一类名称"))

               
            Dim dt2 As DataTable = DataTables("档案二类")
            Dim drs2 As List(of DataRow)
            drs2 = dt2.Select("[一类名称] = '" & cd1.name & "'")
            For Each dr2 As DataRow In drs2
            Dim cd2 As Winform.TreeNode = cd1.Nodes.Add(dr2("二类名称"),dr2("二类名称"))

            Next

 

        Next
           
Next
tr.ResumeRedraw()

不是有BuildTree吗？

http://www.foxtable.com/help/topics/1969.htm

 

http://www.foxtable.com/help/topics/0893.htm

 

 

程版 你那个 buildtree是针对一个表里的目录生成的。我这里的目录分了四个表。所以只能手动啊。

 

 

 

 

三级的完成了，可以执行，但是有些地方需要修改

Dim tr As WinForm.TreeView = e.Form.Controls("TreeView1")
Dim nd As WinForm.TreeNode
Dim dt As DataTable = DataTables("类目")
tr.StopRedraw()
tr.Nodes.Clear
For Each dr As DataRow In dt.datarows
        nd = tr.Nodes.Add(dr("类名"),dr("类名"))
        Dim dt1 As DataTable = DataTables("档案一类")
        Dim drs1 As List(of DataRow)
        drs1 = dt1.Select("[类名] = '" & nd.name & "'")   
        For Each dr1 As DataRow In drs1
        Dim cd1 As Winform.TreeNode
        cd1= nd.Nodes.Add(dr1("一类名称"),dr1("一类名称"))               
            Dim dt2 As DataTable = DataTables("档案二类")
            Dim drs2 As List(of DataRow)
            drs2 = dt2.Select("[一类名称] = '" & cd1.name & "'")   这里需要增加个条件：  and  "[类名] = '" & nd.name & " 不晓得咋个写了
            For Each dr2 As DataRow In drs2
            Dim cd2 As Winform.TreeNode = cd1.Nodes.Add(dr2("二类名称"),dr2("二类名称"))
                    Dim dt3 As DataTable = DataTables("档案三类")
                    Dim drs3 As List(of DataRow)
                    drs3 = dt3.Select("[二类名称] = '" & cd2.name & "'")  这里同上
                    For Each dr3 As DataRow In drs3
                    Dim cd3 As Winform.TreeNode = cd2.Nodes.Add(dr3("三类名称"),dr3("三类名称"))
                    Next
             Next
        Next           
Next
tr.ResumeRedraw()

楼主能否换一个思路，比如建一个临时表,将4个表的相关目录fill到临时表，然后 ......

已解决 再次感谢yangming的大力支持