Actually you can easily extract the Guid for the string by using RegularExpression so it does not matter where the item ID is added.
var mv = Guid.Empty;
var str = String.Empty;
var rg = Regex.Matches(expression, @
(rg.Count > 0)
str = rg.ToString();
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items