data-annotations

Yet another MVC localization question... I'm trying to localize an ASP.Net MVC 3 app using localized Resource files to display texts in the views, as recommended. The problem is, as usual, when trying to localize the default error messages from data annotations. I know you can specify the resource file and key in every Attribute: [Required( ErrorMessageResourceType = typeof(CustomResourceManager), ErrorMessageResourceName = "ResourceKey")] public string Username { get; set; } and even, which is better and preferred, you can override the default message, like this: Default resource for data

Given the following object, public class Question { [Required] public string QuestionText { get; set; } [Range(1, 5)] public int Difficulty { get; set; } } With the following Validation Code ICollection<ValidationResult> results = new List<ValidationResult>(); Question question = new Question(); ValidationContext ctx = new ValidationContext(question, null, null); Validator.TryValidateObject(question, ctx, results); // results.Length = 1 Why does Range attribute not create a validation error when Required does (the value is 0 obviously)? Ah so it would seem I need to specify

I have an auto generated class with a property on it. I want to add some data annotations to that property in another partial class of the same type. How would I do that? namespace MyApp.BusinessObjects { [DataContract(IsReference = true)] public partial class SomeClass: IObjectWithChangeTracker, INotifyPropertyChanged { [DataMember] public string Name { get { return _name; } set { if (_name != value) { _name = value; OnPropertyChanged("Name"); } } } private string _name; } } and in another file I have: namespace MyApp.BusinessObjects { public partial class SomeClass { private SomeClass() { }