What is server-side validation in ASP.NET MVC?

What is server-side validation in ASP.NET MVC?

Server-side validation in ASP.NET MVC is the process of validating user input on the server after it has been submitted. This ensures that the data is correct and secure before processing it.

Why is server-side validation important?

It's important because it helps prevent invalid data from being processed, enhances security by protecting against malicious input, and ensures that business rules are enforced.

How do I implement server-side validation in my ASP.NET MVC application?

You can implement server-side validation by using data annotations in your model classes. For example, you can use attributes like [Required], [StringLength], and [Range] to enforce validation rules.

Can I customize the validation messages?

Yes, you can customize validation messages by specifying the ErrorMessage property in the data annotation attributes or by using a resource file for localization.