How to use and / or localize DisplayAttribute using ASP.NET MVC2?

Question

Possible duplicate:
DisplayName attribute from resources?

I am trying to figure out how to get DisplayAttribute in my MVC 2 ViewModel to work with the Html.LabelFor () helper.

Neither

public class TestModel
{
    [Display(ResourceType = typeof(Localization.Labels))]
    public string Text { get; set; }
}

neither

public class TestModel
{
    [Display(Name = "test")]
    public string Text { get; set; }
}

seems to work. The localization of the required attribute works as expected:

[Required(ErrorMessageResourceName = "Test", ErrorMessageResourceType = typeof(Localization.Labels))]

I am using VS2010 RC. Has anyone got this?

Answer 1

The [Display] attribute is a .NET 4. attribute. Since MVC 2 was compiled against .NET 3.5, the runtime does not recognize this attribute.

. http://aspnet.codeplex.com/WorkItem/View.aspx?WorkItemId=5515 .

Edit:

Eh, . .:)

[Display] DataAnnotations v4, MVC 2 , DataAnnotations v3.5. [DisplayName], MVC 3, DataAnnotations v4.

. .NET 4 RTM, .NET. 4- , , [] DataAnnotations v4-specific . , , [DisplayName], DisplayNameAttribute DisplayNameAttribute.DisplayName _theWrappedDisplayNameAttribute.GetName().

public class MultiCulturalDisplayName : DisplayNameAttribute {
  private DisplayAttribute display;

  public MultiCulturalDisplayName(Type resourceType, string resourceName) {
    this.display = new DisplayAttribute { ResourceType = resourceType, Name = resourceName };
  }

  public override string DisplayName {
    get { return display.GetName(); }
  }
}

Answer 2

ASP.NET MVC 2 Futures, DisplayAttribute. DataAnnotations4ModelMetadataProvider.RegisterProvider(); Global.asax.cs

Answer 3

, 3.5

[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = false)]
public class DisplayNameLocalizedAttribute : DisplayNameAttribute
{
    public DisplayNameLocalizedAttribute(Type resourceType, string resourceKey)
        : base(LookupResource(resourceType, resourceKey)) {  }

    internal static string LookupResource(Type resourceType, string resourceKey)
    {
        PropertyInfo property = resourceType.GetProperties().FirstOrDefault(p => p.PropertyType == typeof(System.Resources.ResourceManager));
        if (property != null)
        {
            return ((ResourceManager)property.GetValue(null, null)).GetString(resourceKey);
        }
        return resourceKey;
    }
}