I am using the Telerik RadChart (Q3 2009) with a DotNetNuke installation (5.1.4), in a custom module. Everything has been working fine, but today I noticed that I'm getting a "Error loading RadChart Image" error message on my module. I have both a development and a prod environment. Development is a Windows 2008 R2 server (IIS 7.5), and Prod is a Windows 2003 (IIS 6) box. The web.config files are identical, and everything works fine in dev, but not in prod (as is always the case).
In <system.webserver> <handlers>, I have:
<add name="ChartImage_axd" verb="*" preCondition="integratedMode" path="../../ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" />
and also tried <add name="ChartImage_axd" verb="*" preCondition="integratedMode" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" />
and in <system.web> I have:
<add path="ChartImage.axd" verb="*" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" validate="false" />
In my code, I also have a line that reads: RadChart1.HttpHandlerUrl = ResolveUrl("ChartImage.axd")
and I've also tried setting UseSession to false, and setting a temporary folder. This produced exactly the same results, however, I did see the chart images being created in my temp folder.
I'm not sure what I'm missing.. any help is greatly appreciated!