What is the role of Data Annotations in model validation within Entity Framework?
- Data Annotations are optional and have no impact on model validation
- Data Annotations are used for database schema generation only
- Data Annotations are used for query optimization
- Data Annotations provide a way to define validation rules directly within the entity classes
Data Annotations play a crucial role in model validation within Entity Framework by providing a way to define validation rules directly within the entity classes. These annotations allow developers to specify constraints such as required fields, string length, range, and regular expressions, enabling Entity Framework to validate entities automatically before saving changes to the database.
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