CustomScrollableControl.CustomScrollableControl.vScrollBar_Scroll Function
Called when the vertical scrollbar was clicked by the user. The new coordinates according to the current scrollbar value is calculated and the scroll method is called to do the smooth scrolling from the old viewport position to the new one.

Private void vScrollBar_Scroll (object, System.Windows.Forms.ScrollEventArgs)
  Type Name Description  
    object sender    
    System.Windows.Forms.ScrollEventArgs e    
  Return Description  
    void