EF 6 IsRequired() allowing empty strings

Question

In past projects with versions of EF5 and EF4, the IsRequired() fluent API method would thrown a DbEntityValidationException if the property was null or an empty string. In my

Answer 1

You may be confusing the StringColumnConfiguration.IsRequired Method and RequiredAttribute.

.IsRequired() marks that column in the database is NOT NULL. The [Required] annotation however, will raised a validation exception if the property is null, contains an empty string (""), or contains only white-space characters.