How to show all images in a folder using asp.net

How to show all images

ASPX:

<asp:DataList ID="DataList1" runat="server" RepeatColumns="5" CellPadding="5">
            <ItemTemplate>
            <asp:Image Width="100" ID="Image1" ImageUrl='<%# Bind("Name", "~/images/{0}") %>' runat="server" />
                <br />
                <asp:HyperLink ID="HyperLink1" Text='<%# Bind("Name") %>' NavigateUrl='<%# Bind("Name", "~/images/{0}") %>' runat="server"/>
            </ItemTemplate>
                <ItemStyle BorderColor="Silver" BorderStyle="Dotted" BorderWidth="1px" HorizontalAlign="Center"
                    VerticalAlign="Bottom" />
</asp:DataList>

 Code-behind:

protected void Page_Load(object sender, EventArgs e)

    {

        ListImages();

    }

 private void ListImages()
    {
        DirectoryInfo dir = new DirectoryInfo(MapPath("~/images"));
        FileInfo[] file = dir.GetFiles();
        ArrayList list = new ArrayList();
        foreach (FileInfo file2 in file)
        {
            if (file2.Extension == ".jpg" || file2.Extension == ".jpeg" || file2.Extension == ".gif")
            {
                list.Add(file2);
            }
        }
        DataList1.DataSource = list;
        DataList1.DataBind();
    }