Hi Richard,
If you make a postback on that page, such result is expected - the postback process refreshes the page and all dynamically created objects on it will be created again after the page is loaded. Since the information about your search is not saved anywhere, the search page will be reloaded.
What I would suggest is to examine our
MDI demo - I believe it will be of help for your scenario.
Best wishes,
Georgi Tunev
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?
Explore the
Telerik Public Issue Tracking
system and vote to affect the priority of the items