I am not quite sure what my cause the problem in your case. Could you please rework the attached demo, open a new support ticket and send it back? I will check it and do my best to provide a working solution.
Please note that I used the OnClientClose
event, instead of the ClientCallBackFunction
function and I recommend you do the same in your project.The callback function is obsolete and we will remove it from the RadWindow
's API in one of the future releases.
the Telerik team