You can use string when setting the TimeElapsed property. Like this:
RadProgressContext.Current.TimeElapsed = "0";
As expected, this code would set the TimeElapsed to zero.
All the best,
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