Validation for SharePoint 2010 external lists / external content types
- by mattblodgett
Where does one put validation for external content types? Let's say one field on my ECT represents an email address that must be unique in our system. Where would I put the validation that checks to see that someone hasn't submitted an instance of the ECT with a duplicate email address? How do I bubble up validation errors so they're displayed in the SharePoint UI?
