Introduction

In our earlier entries in this series on securing web applications, we introduced data annotations as rules defined within the model class. We demonstrated their application using simple annotations on the Customer class. In this post, we will define data annotations and explore common types that you can effectively utilize in your applications.

Data annotations are a set of attributes in ASP.NET Core MVC that you can apply to model properties to specify validation rules, formatting options, display options, and more. These attributes help you define the behavior of your models and enforce data integrity in your application.

Common Data Annotations

Here’s a comprehensive list of commonly used data annotation attributes in ASP.NET Core MVC, along with descriptions of their usage:

Conclusion

In conclusion, our exploration of ASP.NET validation continues as we focus on a range of common data attributes. There may be instances where you need to go beyond the standard attributes provided out of the box. In our upcoming post, we will delve into how to extend these predefined annotation attributes to better suit your specific requirements.

Meanwhile, we greatly value your feedback and are eager to hear your thoughts on this discussion. Please feel free to comment below with any feedback or suggest topics you’d like us to explore in future posts. Your insights and experiences are vital in enriching our content and making this series a comprehensive resource for developers everywhere.