主题：[求助]目录树帅选问题

    'If e.node.Level > 0 Then
    Dim filter As String = ""
    ' Dim dr As DataRow = e.Node.DataRow
    If dr("分组") = "按分组" Then
        If e.Node.Level = 1 Then
            filter = "省 = '" & dr("省") & "'"
        Else If e.Node.Level = 2 Then
            filter = "省 = '" & dr("省") & "' and 市 = '" & dr("市") & "'"
        Else If e.Node.Level = 3 Then
            filter = "省 = '" & dr("省") & "' and 市 = '" & dr("市") & "' and 区县 = '" & dr("区县") & "'"
        Else If e.Node.Level = 4 Then
            filter = "省 = '" & dr("省") & "' and 市 = '" & dr("市") & "' and 区县 = '" & dr("区县") & "' and 乡镇 = '" & dr("乡镇") & "'"
        Else If e.Node.Level = 5 Then
            filter = "省 = '" & dr("省") & "' and 市 = '" & dr("市") & "' and 区县 = '" & dr("区县") & "' and 乡镇 = '" & dr("乡镇") & "' and 街道居委 = '" & dr("街道居委") & "'"
        End If
        filter = "客户分组 in ('" & DataTables("客户分组").GetComboListString("街道居委", filter).Replace("|", "','") & "')"
        'DataTables("个人客户_个人客户信息").LoadFilter =  Filter  '设置加载条件
        'DataTables("个人客户_个人客户信息").Load()
        t.Filter = filter
       
    Else If dr("分组") = "按等级" Then
        filter = "客户等级 = '" & dr("省") & "'"
     Else If dr("分组") = "按状态" Then
        filter = "客户状态 = '" & dr("省") & "'"
     Else If dr("分组") = "按来源" Then
        filter = "客户来源 = '" & dr("省") & "'"
     End If
     t.DataTable.LoadFilter =  Filter  '设置加载条件
     t.DataTable.Load()
     t.Filter = ""
    Dim idx As Integer = e.Node.Text.IndexOf("(")
    If idx > -1 Then
        e.Node.Text = e.Node.Text.SubString(0, idx) & "(" & t.Rows.Count & ")"
    Else
        e.Node.Text = e.Node.Text & "(" & t.Rows.Count & ")"
    End If
End If

 比较具体的问题，最好用简单的例子说话，否则他人很难理解你的问题。