Resizing, Moving, and Deleting Appointments
You can make simple changes to the appointments that RadScheduler displays without bringing up the edit form or in-line editor.
Resizing Appointments
To change the duration of an appointment, select the appointment and move the cursor to the top/bottom (in Day view and Week view) or left/right (in Month view and Timeline view) part of the rectangle and pull it to resize the appointment. This will change the appointment's time and/or date of occurrence, which will automatically be reflected in the appointment.
Figure 1: Start Resizing

It is also allowed to resize a recurring appointment. This would lead to automatically creating an exception.
Figure 2: Resizing a Recurring Appointment

Moving Appointments
You can drag and drop an appointment to another time slot and/or day (depending on the view), thus effectively changing the time and/or date of its occurrence. Simply click on an appointment, hold the moue button down, drag it to a new location, and release the mouse. The appointment will automatically adjust its start and end times.
When you start moving an appointment a feedback alpha blended form is shown as a visual indicator. It shows what will be the start and end time of the dragged appointment.
You can drag a recurring appointment and drop it onto a new time slot as well. As a result an exception appointment would be created if the new location is valid. The user should confirm the creation of an exception appointment.
Figure 3: Moving a Recurring Appointment

Deleting Appointments
The user can delete an appointment:
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By selecting the appointment in the scheduler and hitting the DELETE key.
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By double clicking on the appointment to open the "Edit Appointment Dialog" and pressing the Delete button to remove it from the RadScheduler’s Appointments collection.
Figure 4: Deleting an Appointment

When you try to delete a recurring appointment, you are asked to confirm whether the delete operation should affect the whole series or just the selected appointment.
Figure 5: Deleting a Recurring Appointment
