title: Microsoft .NET Chart control - select points using rectangle
body: <p>Data with X, Y values is plotted on as a <strong>scatter chart</strong> using the .NET 4.0 Chart control.  I believe the Microsoft chart control was obtained from Dundas.</p>
  
  <p>I would like to <strong>select points on the chart using a rubber-band rectangle</strong> similar to the rectangle that is used to zoom the chart.  (When the first mouse button is clicked it establishes one corner of the rectangle, as the mouse moves the semi-transparent rectangle would be redrawn until the mouse is released).</p>
  
  <p>Is there a way to override the zoom method to create a selection rather than zooming-in?</p>
  
  <p>Can an overlay be placed over an existing chart that will catch the mouse clicks and display a transparent rectangle?</p>
  
  <p>I usually like to post sample code with my questions, but in this case I don't know where to begin.  Links to the correct spot in the documentation, other tutorials or example code would be appreciated.</p>