System.Windows.Controls.ItemsControl.AddItemsToPresenter C# (CSharp) Method

		void AddItemsToPresenter (GeneratorPosition position, int count)
		{
			if (_presenter == null || _presenter._elementRoot == null || _presenter._elementRoot is VirtualizingPanel)
				return;
			
			Panel panel = _presenter._elementRoot;
			int newIndex = ItemContainerGenerator.IndexFromGeneratorPosition (position);

			using (var p = ItemContainerGenerator.StartAt (position, GeneratorDirection.Forward, true))
			for (int i = 0; i < count; i ++) {
				var item = Items [newIndex + i];
				DependencyObject container = null;
				
				bool fresh;
				container = ItemContainerGenerator.GenerateNext (out fresh);
				ContentControl c = container as ContentControl;
				if (c != null)
					c.ContentSetsParent = false;
				
				FrameworkElement f = container as FrameworkElement;
				if (f != null && !(item is FrameworkElement))
					f.DataContext  = item;

				panel.Children.Insert (newIndex + i, (UIElement) container);
				ItemContainerGenerator.PrepareItemContainer (container);
			}
		}