Hello Sajib,
Thank you for contacting us.
Please note that this forum concenrs RadControls for WinForms, while your question probably is related to RadControls for ASP.NET AJAX. This is why I want to kindly ask to post your question in the appropriate section which in this case is: Telerik Forums - ASP.NET Controls
Thank you in advance for your cooperation.
Regards,
Peter
Telerik
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