Beyond_Beyaan.BBScrollBar.SetScrollButtonPosition C# (CSharp) Метод

        private void SetScrollButtonPosition()
        {
            scrollPos = (int)(((float)topIndex / (amountOfItems - amountVisible)) * (scrollBarLength - scrollButtonLength));
            if (scrollPos < 0)
            {
                scrollPos = 0;
            }
            else if (scrollPos > (scrollBarLength - scrollButtonLength))
            {
                scrollPos = scrollBarLength - scrollButtonLength;
            }
            if (isHorizontal)
            {
                Scroll.MoveTo(xPos + 16 + scrollPos, yPos);
            }
            else
            {
                Scroll.MoveTo(xPos, yPos + 16 + scrollPos);
            }
        }