How to read property data annotation value in .NET MVC

Question

I Just starting out w/ ASP.NET MVC 3 and I am trying to render out the following HTML for the string properties on a ViewModel on the create/edit view.

Answer 1

Instead of the StringLength attribute (because it's a validator attribute not a metadata provider) you can use the AdditionalMetadata attribute. Sample usage:

public class ViewModel
{
    [AdditionalMetadata("maxLength", 30)]
    public string Property { get; set; }
}

Basically it puts the value 30 under the key maxLength in the ViewData.ModelMetadata.AdditionalValues dictionary. So you can use it your EditorTemplate: