Data Attributes and Validation
Explore how to apply data attributes in ASP.NET Core MVC to enforce validation rules such as required fields, email format, string length constraints, and custom regular expressions. Understand how these attributes improve data integrity by preventing invalid user input in your applications.
We'll cover the following...
We'll cover the following...
Introduction
Data attributes allow you to enforce different rules against a property. These rules can include:
- Requiring users to enter some data and not leaving a field blank
- Defining maximum field length
- Only allowing specific characters to be entered in a specific order
The framework will throw errors if the data entered for the fields does not conform to the specified rules, thus enabling validation.
Code in action
The following code illustrates how attributes ...