Kentico ASCX transformation page type properties

// If this is the first item in the repeater, open the table tag
<%# DataItemIndex == 0 ? "<table>" : "" %>

  // your trasformation code

// if this is the last item in the repeater, close the table tag
<%# DataItemIndex + 1 == DataItemCount ? "</table>" : "" %>

<%# IsFirst() ? "<table>" : "" %>

// transformation code

<%# IsLast() ? "</table>" : "" %>

<%#  ( (DataItemIndex % 4 == 0) ? "<div class=\"row\">" : "" ) %> <!-- Start Row -->

<%# (DataItemIndex % 4 == 3 || DataItemIndex == DataRowView.DataView.Count - 1 ? "</div>" : "") %>  <!-- Close Row -->

{%
orders = ECommerceContext.CurrentCustomer.AllOrders;
if (orders.Count > 0) {
    result = "<ul>";
    foreach (order in orders) {
        foreach (item in order.OrderItems)
            { result += "<li>" + item.OrderItemSKUName + "</li>" }
    };
    return result + "</ul>";
}%}

<div>
  {% HTMLContent %}
</div>