Thank you for contacting us.
The best way to achieve this scenario is to add an UserId
column to the Appointments table and then add a parameter to the Fill method of the table adapter. I am attaching a sample project which demonstrates this. I am also attaching a short video which shows how to add a parameter to the Fill method. A backup of the database I have used is also included.
I hope this will help you. Do not hesitate to write back if you have further questions.
the Telerik team