Normally, you have to add
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
to each web page to get the Telerik controls to work.
This technique will add the registration to the entire web site.
I have a situation where 3 items were received on the same purchase receipt, only 1 item generated IV history while the other 2 did not. Would anyone be able to guide me on how I could explain how this could have happened? I ran some SQL queries to show the items in question.