Hi Angus Cheung,
Thank you for writing.
The many-to-many relation that you want to incorporate in your scenario should be supported by three tables, but not by two. For additional information about such a scenario, please refer to our documentation
. These three tables will allow you to add many resources to one appointment. In addition, you should replace the default EditAppointmentDialog with a custom one, because the default dialog does not allow the user to select more than one resources for an appointment. Basically, the idea is to use a checked list box instead of a combo box to display a list of the available resources.
I hope that this will help you. If you have additional questions, feel free to ask.
the Telerik team
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