How to use DataAnnotations ErrorMessageResourceName with custom Resource Solution

Question

I\'m building a MVC web application with C#. Since the site will be multilingual, I\'ve implemented my own ResourceManager. This class is responsible for fetching the requir

Answer 1

The RequiredAttribute allows to use a custom resource manager:

[Required(
    ErrorMessageResourceType = typeof(CustomResourceManager), 
    ErrorMessageResourceName = "ResourceKey")]
public string Username { get; set; }

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UPDATE:

Another possibility is to write your custom attribute:

public class CustomRequiredAttribute : RequiredAttribute
{
    public override string FormatErrorMessage(string name)
    {
        return YourCustomResourceManager.GetResource(name);
    }
}