CmisSync.CmisTree.CmisTreeDataSource.GetChild C# (CSharp) Метод

        public override NSObject GetChild(NSOutlineView outlineView, int childIndex, NSObject item)
        {
            UpdateItem (ref item);
//            Console.WriteLine ("GetChild " + item);
            if (item == null) {
                return Repositories [childIndex];
            }
            NSCmisTree cmis = item as NSCmisTree;
            if (cmis == null) {
                Console.WriteLine ("GetChild Error");
                return null;
            }
            return cmis.Children [childIndex];
        }