ProgramGood.Net

<asp:Repeater ID="Repeater1" runat="server">
            <ItemTemplate>
            <%#DataBinder.Eval(Container.DataItem, "FileName")%>
            </ItemTemplate>
        </asp:Repeater>

<asp:Repeater ID="Repeater1" runat="server">
           <ItemTemplate>
           <%#Eval("FileName")%>
           </ItemTemplate>
       </asp:Repeater>

public class ImageThing
{
    public string FileName {get; set; }
}

private void DisplayThumbnailImages()
{
    ImageThing imageThing1 = new ImageThing();
    ImageThing imageThing2 = new ImageThing();
    imageThing1.FileName = "asdf.jpg";
    imageThing2.FileName = "aaa.jpg";

    List<ImageThing> imagesToRender = new List<ImageThing>();
    imagesToRender.Add(imageThing1);
    imagesToRender.Add(imageThing2);

    Repeater1.DataSource = imagesToRender;
    Repeater1.DataBind();
}

public class ImageThing
    {
        public string FileName;
    }