@if (ViewData.ModelMetadata.PropertyName.EndsWith("Id"))
{
    var key = (Model as Guid?);
    if (key.HasValue)
    {
        @ViewData.Get(key.Value)
    }
}
else if(ViewData.ModelMetadata.IsEnum)
{
    @((Model as Enum)?.GetDisplayName());
}
else
{
    @Model
}