A number of people have posted questions about upgrading their VS 2008 web applications using the ReportViewer control to VS 2010. The upgrade process is not automatic. Before I get into the steps required to upgrade your applications to the VS 2010 ReportViewer, I’d like to take a moment to explain why this upgrade process is not automatic.
The VS 2008 ReportViewer can be used in the VS 2010 shell. While you won’t get the design time experience associated with the 2008 viewer, it will function correctly at runtime. Certainly, we want everyone to upgrade to the new version, but there are a few reasons you might not want to, and therefore why we don’t upgrade everything automatically:
After you load your web application in VS 2010, you will need to perform the following manual steps to get your application back to a fully working state: