System.Windows.Forms.ListView.ShiftItemsPositions C# (CSharp) Method

		void ShiftItemsPositions (int from, int to, bool forward)
		{
			if (forward) {
				for (int i = to + 1; i > from; i--) {
					reordered_items_indices [i] = reordered_items_indices [i - 1];

					ListViewItem item = items [reordered_items_indices [i]];
					item.Invalidate ();
					item.DisplayIndex = i;
					item.Invalidate ();
				}
			} else {
				for (int i = from - 1; i < to; i++) {
					reordered_items_indices [i] = reordered_items_indices [i + 1];

					ListViewItem item = items [reordered_items_indices [i]];
					item.Invalidate ();
					item.DisplayIndex = i;
					item.Invalidate ();
				}
			}
		}