Hi guys

I am trying to implement the "Relate copied items to original" functionnality. Basically, on parent update I am copying all properties values to its childs.

here is my code :

Document copy = new Document(r.Child.Id);

foreach (umbraco.cms.businesslogic.property.Property p in documentObject.getProperties)
{
          copy.getProperty(p.PropertyType.Alias).Value = p.Value;
}
//copy.Save();

It is working as I want but I thougt that I would have to save (copy.Save();) childs documents at the end but I noticed that it is not necessary...

I was just wondering why is it not required and what is the Save() function for ?!