Hello,
Indeed the
"Cancel" button in the RadScheduler advanced form is performing a post-back when closing the form.
Here you may find a similar forum post that provides a sample project demonstrating how you can hide the advanced form without performing any post-back.
I would like to note that this functionality is only implemented in the
AdvancedEditForm for sample purposes. So if you want to test it, please try to modify an existing appointment and click the cancel button placed in the pop-up form.
Regards,
Boyan Dimitrov
the Telerik team
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