Hi Donna Padilla,
RadComboBox load on demand utilizes ASP.NET Callbacks which unfortunately skip the Application_Error event. In a word if there is an exception thrown in your ItemsRequest event handler the Application_Error event won't be fired. The same goes with WebService exceptions. I am afraid the only possible way to log exceptions from the ItemsRequested event is to add a try catch block:
try {
//Load on demand code
}catch (Exception exception)
{
myLogger.Log(exception)
throw exception;
}
Regards,
Albert
the Telerik team
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