OpenTween.TweenMain.SelectListItem C# (CSharp) Method

        private void SelectListItem(DetailsListView LView , int[] Index, int focusedIndex, int selectionMarkIndex)
        {
            //複数
            Rectangle bnd = new Rectangle();
            bool flg = false;
            var item = LView.FocusedItem;
            if (item != null)
            {
                bnd = item.Bounds;
                flg = true;
            }

            if (Index != null)
            {
                do
                {
                    LView.SelectedIndices.Clear();
                }
                while (LView.SelectedIndices.Count > 0);
                LView.SelectItems(Index);
            }
            if (selectionMarkIndex > -1 && LView.VirtualListSize > selectionMarkIndex)
            {
                LView.SelectionMark = selectionMarkIndex;
            }
            if (focusedIndex > -1 && LView.VirtualListSize > focusedIndex)
            {
                LView.Items[focusedIndex].Focused = true;
            }
            else if (Index != null && Index.Length != 0)
            {
                LView.Items[Index.Last()].Focused = true;
            }

            if (flg) LView.Invalidate(bnd);
        }