What is server-side validation in MVC applications?

What is server-side validation in MVC applications?

Server-side validation is the process of validating user input on the server after it has been submitted from the client. In MVC applications, this ensures that the data is correct and secure before processing it.

Why is server-side validation important?

It's crucial for security, as it helps prevent malicious data from being processed. It also ensures data integrity and improves user experience by providing accurate feedback.

How does it differ from client-side validation?

Client-side validation occurs in the user's browser before the data is sent to the server, while server-side validation happens on the server after the data is submitted. Client-side validation is faster but can be bypassed, making server-side validation essential.

Can you give an example of server-side validation in an MVC framework?

Sure! In ASP.NET MVC, you can use data annotations like [Required] or [StringLength] in your model to enforce validation rules. When the form is submitted, the framework checks these rules on the server.