Display images from directory

I need to display images from the directory. I use datalist and it shows images but it also shows link -Thumbs.db on the page. When I click the link -there is nothing. I do not have this db in my directory. How can I get rid of this Thumbs.db link on the page?
Please, advise

My apsx form:
 <asp:DataList ID="dtlist" runat="server" RepeatColumns="3" CellPadding="5">
<ItemTemplate>
<asp:Image Width="100" ID="Image1" ImageUrl='<%# Bind("Name", "~/Images1/{0}") %>' runat="server" />
<br />
<asp:HyperLink ID="HyperLink1" Text='<%# Bind("Name") %>' NavigateUrl='<%# Bind("Name", "~/Images1/{0}") %>' runat="server"/>
</ItemTemplate>
<ItemStyle BorderColor="Brown" BorderStyle="dotted" BorderWidth="3px" HorizontalAlign="Center"
VerticalAlign="Bottom" />
</asp:DataList>

My code:

Public Sub BindDataList()


        Dim dir As New DirectoryInfo(MapPath("Images1"))
        Dim files As Array = dir.GetFiles()
        Dim ListItems As New ArrayList
        For Each FileInfo In files
           ListItems.Add(FileInfo)
        Next
       dtlist.DataSource = ListItems
        dtlist.DataBind()

   End Sub