Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# Entity Framework Basics Extending Our Entity Data Model Defining a Foreign Key Property

Balazs Peak
Balazs Peak
46,160 Points
Posted by Balazs Peak
Balazs Peak
46,160 Points

just added [Required] annotation, as you have said in one of the previous videos, and that also made it non-nullable

just added [Required] annotation, as you have said in one of the previous videos, and that also made it non-nullable

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

That's right, since a "null" indicates that no answer was provided. So any field that is required is also not nullable.