I just came across this article and i taught its a good resource for BI Developers and other Analysts. Hope it helps
When working with Microsoft Chart Control. You sometime get error: 1)Error executing child request for ChartImg.axd or 2)No http handler was found for request type 'POST' and Chart control For error 2 you just need to add <add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVis... System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad36... validate="false" /> to the handler in your web.config Solution to...