Enum localization

You can implement a description attribute.

public class LocalizedDescriptionAttribute : DescriptionAttribute
{
     private readonly string _resourceKey;
    private readonly ResourceManager _resource;
    public LocalizedDescriptionAttribute(string resourceKey, Type resourceType)
    {
        _resource = new ResourceManager(resourceType);
        _resourceKey = resourceKey;
    }

    public override string Description
    {
        get
        {
            string displayName = _resource.GetString(_resourceKey);

            return string.IsNullOrEmpty(displayName)
                ? string.Format("[[{0}]]", _resourceKey)
                : displayName;
        }
    }
}

public static class EnumExtensions
{
    public static string GetDescription(this Enum enumValue) 
    {
        FieldInfo fi = enumValue.GetType().GetField(enumValue.ToString());

        DescriptionAttribute[] attributes =
            (DescriptionAttribute[])fi.GetCustomAttributes(
            typeof(DescriptionAttribute),
            false);

        if (attributes != null &&
            attributes.Length > 0)
            return attributes[0].Description;
        else
            return enumValue.ToString();
    }
}

Define it like this:

public enum Roles
{
    [LocalizedDescription("Administrator", typeof(Resource))]
    Administrator,
...
}

And use it like this:

var roles = from RoleType role in Enum.GetValues(typeof(RoleType))
                    select new
                    {
                        Id = (int)role,
                        Name = role.GetDescription()
                    };
 searchModel.roles = new MultiSelectList(roles, "Id", "Name");