iterate over classes ie. beans for asp.net

[snip]
<body>
    <form id="form1" runat="server">
        <% Somethings.ForEach(s => { %>
            <h1><%=s.Name %></h1>
            <h2><%=s.Id %></h2>
        <% }); %>
    </form>
</body>
</html>

[snip]
public partial class _Default : System.Web.UI.Page
    {
        protected List<Something> Somethings { get; private set; }
        protected void Page_Load(object sender, EventArgs e)
        {
            Somethings = GetSomethings(); // Or whatever populates the collection

        }
[snip]

List<YourClass> myObjects = SomeMagicMethodThatGetsAllInstancesOfThatClassAndAddsThemtoTheCollection();
foreach (YourClass instance in myObjects)
{
Response.Write(instance.PropertyName.ToString();
}