public static AttributeCollection GetAggregatedAttributes(this IAggregatesAttributes owner)
{
var aggregateAttributes = new AttributeCollection();
if (owner.AttributeParent != null)
{
aggregateAttributes.AddOrUpdateAttributes(owner.AttributeParent.GetAggregatedAttributes());
}
aggregateAttributes.AddOrUpdateAttributes(owner.ExplicitAttributes);
return(aggregateAttributes);
}