Hi Priya,
You should first find the item which contains the textbox and then use FindControl method as it's demonstrated
here.
Regards,
Yana
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.