Already resolved this by using the Readonly property of a schedule event.
Thank you very much.
NRNevitha Ravi Syncfusion Team March 5, 2019 04:18 AM
We regret for the delayed post.
We have checked the reported problem at our end which is due to actionBegin will trigger only after the delete confirmation dialog. So we have prepared the sample for your requirement by opening the editor manually using openEditor public method which can be downloaded from the following link.