Client-side Events Overview
These are the client events that can be used with RadSearchBox control:
OnClientSearch event occurs when the search button is clicked, Enter is pressed, or an item from the searchBox dropdown is clicked.
OnClientButtonCommand event occurs when some of the image buttons is clicked.
OnClientDataRequesting occurs when a new text is entered and a request for items is about to be sent.
OnClientLoad occurs when the control is loaded.