Thank you for contacting us.
The process of adding a custom field to the appointments and then exposing it in a customized edit dialog is described in this help article
. Shortly, to replace the default dialog with a custom one, your dialog should implement the IEditAppointmentDialog
interface and you should handle the AppointmentEditDialogShowing
sender, AppointmentEditDialogShowingEventArgs e)
I hope this helps. Feel free to ask if you have any additional questions.
the Telerik team