Learn how to use HTML validation to check your code for errors, bugs, and compliance with the standards and best practices. Follow four easy steps to improve your code quality, performance, and ...

Learn how to use HTML data attributes to store and access extra information in your HTML elements. Find out how they can improve user experience, validation, and debugging.

In a future post here, we’ll look at how data annotation can be used in ASP.NET Core MVC applications to perform model validation. How to do more in C# When to use an abstract class vs ...

For a database to be effective, the information it contains must necessarily be accurate, consistent and free from errors. Data validation does not directly guarantee accuracy, but when ...

Data validation is one of the most effective ways to protect Web applications from attack. Ensuring only the data you expect is entered into a form or provided via some other input mechanism ...

To automate model state validation in ASP.Net Core 2.0, we can take advantage of a custom action filter as shown in the code snippet below. Action filters are executed before model binding and ...

Separating your validation code from your business class allows UI developers to apply your validation code to their DTOs and ViewModels. Data Annotations support this separation either by creating ...