How do I handle validation errors in MVC?

How do I handle validation errors in MVC?

In MVC, you can handle validation errors by using data annotations and model state validation. When a model fails validation, you can display error messages in your view.

Can you give me an example of how to implement this?

Sure! You can use the [Required] attribute on your model properties. In your controller, check ModelState.IsValid to see if there are any validation errors.

What if I want to customize the error messages?

You can customize error messages by specifying them in the data annotations, like this: [Required(ErrorMessage = "This field is required.")].

Is there a way to display these errors in the view?

Yes! In your view, you can use @Html.ValidationMessageFor(model => model.PropertyName) to display the error messages next to the corresponding fields.