title: Creating dynamic charting tooltips
body: <p>I am using Visual Studio 2010 and WFC to create a point graph of data. To create my chart I have a datatable with 3 different columns; these are Date, Value and Serial. This table is generated dynamically off of an SQL query and then I plot the Date on the x axis and Value on the y axis. What I am trying to achieve is that when the mouse is over a point on the chart then a tool tip shows the Date, Value and the unique Serial relating to these values. At the moment I am using </p>
  
  <pre><code>myChart.Series["mySeries"].ToolTip = "XValue = #VALY \r\nDate = #VALX{d}";
  </code></pre>
  
  <p>however obviously this does not show the serial number against these values. I tried using a ToolTip event however had some problems when trying to convert from datapoint in pixels to an exact plot on the graph. I hope this question makes sense.</p>