Dim trv1 As WinForm.TreeView = e.Form.Controls("TreeView1")
Dim trv2 As WinForm.TreeView = e.Form.Controls("TreeView2")
trv1.BuildTree("授权","分组|权限")
For Each u As UserInfo In Users
    If u.Type = UserTypeEnum.User Then
        If trv2.Nodes.Contains(u.Group) = False Then
            trv2.Nodes.Add(u.Group)
        End If
        trv2.Nodes(u.Group).Nodes.Add(u.Name)
    End If
Next
Trv1.Nodes(0).Expand()
trv2.ExpandAll()

照抄的，出现以下错误，什么原因呢。内部数据源

这样测试

Dim trv1 As WinForm.TreeView = e.Form.Controls("TreeView1")
Dim trv2 As WinForm.TreeView = e.Form.Controls("TreeView2")
trv1.BuildTree("授权","分组|权限")
For Each u As UserInfo In Users
    If u.Type = UserTypeEnum.User Then

msgbox(u.group)

If u.Group > "" Then
        If trv2.Nodes.Contains(u.Group) = False Then
            trv2.Nodes.Add(u.Group)
        End If
        trv2.Nodes(u.Group).Nodes.Add(u.Name)

End If
    End If
Next

msgbox(trv1.nodes.count)
Trv1.Nodes(0).Expand()
trv2.ExpandAll()

以下为窗口AfterLoad代码

Dim tp1 As WinForm.TopicPage

tp1 = Forms("目录窗口").Controls("TopicBar1").Pages("页面1")
if Functions.Execute("ShouQuan","财务人员","系统管理") Then
tp1.Visible = True
Else
tp1.Visible = False
End If

此主题相关图片如下：qq图片20180510221332.png

 

当用权限表的用户登录时提示以下错误，这是什么原因呢

改代码

If User.Type <> UserTypeEnum.User Then \' 如果是开发者或者管理员
    Return True \'则具备所有权限
End If
Dim dt As DataTable = DataTables("授权")
Dim dr As DataRow
If Args(1) = "" Then
    \'首先判断分组的授权用户是否包括此用户或此用户所属的分组
    dr = dt.Find("分组 = \'" & args(0) & "\' And 权限 Is Null" )
    If dr Is Nothing Then
        MessageBox.show("不存在名为""" & args(0) & "分组!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)
        Return False
    End If
    If dr.IsNull("用户") = False Then
        Dim nms() As String = dr("用户").Split(",")
        For Each nm As String In nms
            If nm = User.Group OrElse nm = User.Name Then \'如果授权用户包括登录用户所属的分组或其用户名
                Return True \'返回True
            End If
        Next
    End If
    Return False
End If
\'然后判断权限的授权用户是否包括此用户或此用户所属的分组

dr = dt.Find("分组 = \'" & args(0) & "\' And 权限 = \'" & args(1) & "\'")
If dr Is Nothing Then
    MessageBox.show("不存在名为""" & args(1) & "权限!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)
    Return False
End If
If dr.IsNull("用户") = False Then
    Dim nms() As String = dr("用户").Split(",")
    For Each nm As String In nms
        If nm = User.Group OrElse nm = User.Name Then \'如果授权用户包括登录用户所属的分组或其用户名
            Return True \'返回True
        End If
    Next
End If
Return False