This scenario could be accomplish. I prepared a sample project for you. Attached you can find the sample.
I would suggest you to use the EditAppointment command to edit an appointment from the RadGridView. You could pass the appointment you want to edit as parameter to the command. For example:
..where the doubleClickedApp
parameter is a type of Appointment
I hope this suits your needs. Please do not hesitate to contact us if you require any further information.
the Telerik team
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