I want to open the AdvancedForm on single clicking the Appointment in Month view. Also I would like to display an alert on click as shown in the attachment if Recurrence is enabled.
Try the following JavaScript function and attach it to the OnClientAppointmentClick event of the RadScheduler. You can use the editAppointmentWithConfirmation function to display an alert when recurrence is enabled. In case if you dont want to display the alert, use the editAppointment() function.