How does model binding work in ASP.NET MVC validation?

How does model binding work in ASP.NET MVC validation?

Model binding in ASP.NET MVC maps HTTP request data to action method parameters. It validates the data based on data annotations.

What are data annotations, and how do they help with validation?

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

Can I create custom validation attributes?

Yes, you can create custom validation attributes by inheriting from the ValidationAttribute class and implementing the IsValid method.

How do I handle validation errors in the view?

You can display validation errors in the view using the Html.ValidationMessageFor helper method, which shows messages for specific model properties.