Hi everyone,

I have a problem and i don't know whether it is related to rad calendar  or something else.
Let me explain the scenario:-

i have rad calendar and its in the update panel and when user tries to select the date in a row i.e. selecting the date change in continues succession, then a error below pop-up (it is happening only in IE9).

Microsoft JScript runtime error: Sys.ParameterCountException: Parameter count mismatch.

Thanks and regards, 
Gaurav Sharma 

Hi Gaurav,

The provided information is not enough to isolate the root cause of the error you are facing. The problematic behaviour could ne be replicated locally in a sample application with ajaxified RadCalendar control. Therefore could you please share your page markup and related code behind so we could further research ion the issue?

All the best,
Maria Ilieva
the Telerik team