主题：这段代码有啥问题?

Dim Arys As List(Of String())

Dim Products As List(Of String)

Products = DataTables("功能导航").GetValues("功能区")

For Each Product As String In Products

    Dim pg As WinForm.TabPage

    pg = tab.TabPages.Add(Product , Product & "  →")

    pg.BackColor = Color.WhiteSmoke

    Dim dr As DataRow= DataTables("功能导航").Find("功能区='" & Product & "'")

    If dr IsNot Nothing Then

        pg.Image = GetImage(dr("分类图标"))

    End If

    

    Dim Customers As List(Of String)

    Customers = DataTables("功能导航").GetValues("功能组","功能区='" & Product & "'","序号")

    For Each Customer As String In Customers

        

        Dim lvw As WinForm.ListView

        lvw = forms("我的导航").CreateControl(Customer, ControlTypeEnum.ListView)

        lvw.Dock = Windows.Forms.DockStyle.Fill

        lvw.Font = New Font("微软雅黑", 10)

        

        pg.AddControl(lvw)

        

        lvw.StopRedraw() '暂停绘制

        lvw.Groups.Clear

        lvw.Rows.Clear() '清除原来的行

        lvw.Images.Clear() '清除原来的图片

        lvw.View = ViewMode.LargeIcon

        lvw.Images.LargeSize = New Size(48, 48) '定义大图标尺寸

        

        Dim vg As WinForm.ListViewGroup = lvw.Groups.Add() '增加分组

        vg.Name = Customer

        vg.Text = "☆☆☆" & Customer & "☆☆☆"

        

        

        

        

        Arys = DataTables("功能导航").GetValues("模块名称|模块标题|模块图标","功能区='" & Product & "'And 功能组='" & Customer & "'","序号")

        For Each Ary As String() In Arys

            Dim key As String = Ary(2)

            lvw.Images.AddLargeImage(key, key) '添加照片,直接用文件名作为图片键值

            Dim vr As WinForm.ListViewRow = lvw.Rows.Add() '增加一行

            vr.Group = vg.Name

            vr.Name = Ary(0)

            vr.Text = Ary(1)

            vr.ImageKey = key

        Next

lvw.ResumeRedraw() '恢复绘制

    Next

Next