private void ButtonNext_Click(object sender, EventArgs e)
 {
     if (PartsPanel.AutoScrollPosition.X + PartsPanel.Width < _lastViewPoint)
     {
         PartsPanel.AutoScroll         = true;
         PartsPanel.AutoScrollPosition = new Point(PartsPanel.AutoScrollPosition.X + 20, 0);
         //MainPanel.AutoScroll = false;
         PartsPanel.Invalidate();
     }
 }
 private void ButtonPrev_Click(object sender, EventArgs e)
 {
     if (PartsPanel.AutoScrollPosition.X > 0)
     {
         PartsPanel.AutoScroll         = true;
         PartsPanel.AutoScrollPosition = new Point(PartsPanel.AutoScrollPosition.X - 20, 0);
         //MainPanel.AutoScroll = false;
         PartsPanel.Invalidate();
     }
 }