How can I implement validation in my ASP.NET Core MVC app?
An example of an AI chatbot conversation about validation in ASP.NET Core MVC applications.
How can I implement validation in my ASP.NET Core MVC app?
You can implement validation in your ASP.NET Core MVC app using data annotations or custom validation attributes.
Can you give me an example of using data annotations?
Sure! You can use attributes like [Required], [StringLength], and [Range] on your model properties to enforce validation rules.
What if I need more complex validation logic?
For complex validation, you can create a custom validation attribute by inheriting from ValidationAttribute and overriding the IsValid method.
How do I display validation messages in the view?
You can use the Html.ValidationMessageFor helper in your Razor views to display validation messages next to the input fields.
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