MVC Html DropDownListHelper

EnumerationExtensions.cs

 public static class EnumerationExtensions
    {
        public static IEnumerable<SelectListItem> GetEnumerationItems(this Enum enumeration)
        {
            var listItems = Enum
                .GetValues(enumeration.GetType())
                .OfType<Enum>()
                .Select(e =>
                        new SelectListItem()
                            {
                                Text = e.GetDescriptionOrValue(),
                                Value = e.ToString(),
                                Selected = e.Equals(enumeration)
                            });

            return listItems;
        }
    }

Model.cs

using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;

namespace SomeMvcProject.Web.Models
{
    public class RegistrationModel : IModel
    {
        [Required]
        [Display(Name = "Position")]
        public PositionType Position { get; set; }  

    }
}

PositionType.cs

    public enum PositionType
    {
        [Description("Shop Owner")]
        ShopOwner,
        Member,
        Associate
    }

View.cshtml

 <div class="editor-label">
            @Html.LabelFor(model => model.Position)
        </div>
        <div class="editor-field">
            @Html.DropDownListFor(m => m.Position, Model.Position.GetEnumerationItems())
            @Html.ValidationMessageFor(model => model.Position)
        </div>