Hello Karl,
If you want to keep the window instance after it is opened for a particular cell open and initiating a postback request, you will need to find a way to re-invoke the
launchAgenda(EventID) client method the response is received back from the server. This strictly depends on your custom logic, that is why I am not able to provide a definite solution/code snippet for your case. Let me know if I am missing something.
Kind regards,
Stephen
the Telerik team
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