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

		int GetFixedAdjustedIndex (Keys key)
		{
			int result;

			switch (key) {
				case Keys.Left:
					if (view == View.List)
						result = focused_item_index - rows;
					else
						result = focused_item_index - 1;
					break;
				case Keys.Right:
					if (view == View.List)
						result = focused_item_index + rows;
					else
						result = focused_item_index + 1;
					break;
				case Keys.Up:
					if (view != View.List)
						result = focused_item_index - cols;
					else
						result = focused_item_index - 1;
					break;
				case Keys.Down:
					if (view != View.List)
						result = focused_item_index + cols;
					else
						result = focused_item_index + 1;
					break;
				default:
					return -1;

			}

			if (result < 0 || result >= items.Count)
				result = focused_item_index;

			return result;
		}