title: Saving charts with dynamic view
body: <p>In my WinForms application, I have to display line graphs. </p>
  
  <p>One feature which I need to implement in my application is saving the chart to a file. Once the chart is saved and the application is closed, the saved chart can be opened and the user can zoom-in/zoom-out the chart for analysis. </p>
  
  <p>Most charting tools enable user to save the chart to an image file like .png/.jpg etc., which are static.</p>
  
  <p>I want to achieve something like <a href="http://in.mathworks.com/help/matlab/ref/savefig.html" rel="nofollow">Matlab's FIG file</a>. Are there controls which already do this? Or if I have to implement it myself, what is the best approach?</p>