Never mind, I missed out that a GetAttributeValues method existed

Solution below seems to work fine.

public IList<int> Ids
{
    get { return (IList<int>)GetAttributeValues<int>("Ids"); }
    set { SetAttributeValue<int>("Ids", value); }
}

Hi,

Yes this is possible by calling SetAttributeValues like this:

List<int> list = new List<int>();
list.Add(1);
list.Add(2);
SetAttributeValues("IDs", list);

You can also do the same with complex values:

List<Blog> list = new List<Blog>();
list.Add(BlogHandler.GetBlog(1));
list.Add(BlogHandler.GetBlog(2));
SetAttributeValues("Blogs", list);