What are the best practices for model validation in MVC?

What are the best practices for model validation in MVC?

Best practices for model validation in MVC include using data annotations, custom validation attributes, and ensuring server-side validation.

Can you explain how data annotations work?

Data annotations are attributes you can apply to model properties to enforce validation rules, like [Required] or [StringLength].

What about custom validation attributes?

Custom validation attributes allow you to create your own validation logic by inheriting from the ValidationAttribute class.

How do I implement server-side validation?

Server-side validation can be implemented by checking model state in your controller actions and returning errors if the model is invalid.