vb.net ArrayList,Session的存值取值

'ArrayList宣言

    Dim ALL As New ArrayList()

        Dim ImageMap1 As ImageMap = DirectCast(FormView1.FindControl("ImageMap1"), ImageMap)
        ImageMap1.ImageUrl = GetThumbnailPath2(filename2)
        'aryFileName.Add(filename2)
        Dim testfileName As String = System.IO.Path.GetFileNameWithoutExtension(ImageMap1.ImageUrl)

’存值

        ALL.Add(testfileName)

        Session.Add("SessionFileName", ALL)

’取值

            Dim arySession As New ArrayList
            If Session("SessionFileName").GetHashCode <> 0 Then
                arySession = Session("SessionFileName")
                    For i = 0 To arySession.Count
                        Dim aaa As String = arySession(i).ToString

                    Next
            End If