private void ArrangeControls()
{
int hBarSize = _hScrollBar.Height;
int vBarSize = _vScrollBar.Width;
Rectangle clientRect = ClientRectangle;
_hScrollBar.SetBounds(clientRect.X, clientRect.Bottom - hBarSize,
clientRect.Width - vBarSize, hBarSize);
_vScrollBar.SetBounds(clientRect.Right - vBarSize, clientRect.Y,
vBarSize, clientRect.Height - hBarSize);
}