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How to handle BACKSPACE presses when EnableLoadOnDemand and MarkFirstMatch are 'true'

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Article relates to

RadComboBox for ASP.NET AJAX

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Simon, Telerik

Last modified by

Simon, Telerik

HOW TO
Handle BACKSPACE presses in RadComboBox working in Load On Demand and with MarkFirstMatch set to true.

DESCRIPTION
By default, RadComboBox does handle this case. In some cases, when BACKSPACE is pressed, the last letter of the user-typed text should be deleted and Items should be filtered with the new text. This default behaviour can be seen here.

SOLUTION
Handle the OnClientItemsRequesting and OnClientKeyPressing events as shown below:

        var queryText = ""; 
         
        function clientItemsRequesting(sender, eventArgs) 
        { 
            queryText = eventArgs.get_text(); 
        } 
         
        function clientKeyPressing(sender, eventArgs) 
        {             
            if (eventArgs.get_domEvent().keyCode == 8) 
            { 
                var newText = queryText.substring(0, queryText.length); 
 
                sender.set_text(unescape(newText)); 
            } 
        } 

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