how to create a dynamic graph

I think you will have the most control over the rendering of the graph if you do it yourself. On a windows form you will need to override the OnPaint event and use the Graphic object to draw your graph, anytime the values get updated you will need to Invalidate the form so that it gets re-drawn. Check out this article by Mike http://www.c-sharpcorner.com/UploadFile/mgold/XYPlotControl09222005015109AM/XYPlotControl.aspx?ArticleID=01c2939d-9e2b-44b0-99ff-758f7cf03dca