Hi Danie,
Thank you for using Syncfusion products.
The following code snippet would help you in achieving your requirement,
For more details about the contextchoice in EditControl,please refer the following links.
http://help.syncfusion.com/ug_92/User%20Interface/Windows%20Forms/Edit/default.htm?turl=Documents%2F466222contextchoice.htmPlease let us know if you have any concerns.
Regards,
Arun