ASP.Net [HiddenInput] Data Attribute not working when rendered with Html.EditorForModel in Razor?

Question

I have the following model:

public class Product
{
    [HiddenInput(DisplayValue = false)]
    public int ProductID { get; set; }

    [Required(ErrorMessage         


        

Answer 1

I too had this issue. The issue was occurring due to different versions of System.Web.Mvc in different projects of the same solution. I removed and added the references again so that it is same for all the projects(4.0.0.1).