New to Telerik UI for ASP.NET AJAX? Download free 30-day trial


The OnClientDataRequesting client-side event occurs when a new text is entered and a request for items is about to be sent.

The event handler receives two parameters:

  1. The instance of RadSearchBox firing the event.

  2. An eventArgs parameter containing the following methods:

    • get_text() - returns the text of the searchBox.

    • get_showAllResults() - returns a boolean value indicating whether all results should be shown,or just a portion of them, depending on the MaxResultsCount property value.

    • set_cancel(boolean) - cancels the event depending on the value passed as an argument.

    • get_userContext() - returns the userContext object of type IDictionary that is passed after that to the OnDataSourceSelect event handler or to the Web Service method.

In this article