How can I implement advanced custom attributes in ASP.NET MVC?
You can create custom attributes by inheriting from the ValidationAttribute
class and overriding its methods.
Can you give me an example of a custom validation attribute?
Sure! Here's a simple example: create a class MustBeAdultAttribute
that checks if the age is 18 or older.
How do I apply this attribute to a model property?
You can apply it by decorating the property with the [MustBeAdult]
attribute in your model class.
What if I want to add a custom error message?
You can set the ErrorMessage
property in your custom attribute class to provide a specific error message.
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