protected override int DoCompare(Sitecore.Data.Items.Item item1, Sitecore.Data.Items.Item item2)
{
if (item1.TemplateName == "Event")
{
var evnt1 = item1.GlassCast<Event>();
var evnt2 = item2.GlassCast<Event>();
return evnt1.Start.CompareTo(evnt2.Start);
}
return base.DoCompare(item1, item2);
}