I've been trying to figure out how to debug a SSRS 2005 Custom Data Extension (CDE). There are 2 environments in which I can do this; 1) Installed and running under IIS while using ReportManager or, 2) running within DevStudio while using the ReportDesigner. So far, I have not been successful at either.

What I've been doing is writing a test project which references my CDE DLL and debugging everything in-process. However, SSRS appears to call my CDE very differently than I do. Also, within my own test app, I get trace logging (enabled within the App.config), but when running in DevStudio or IIS, I do not.

Any suggestions are appreciated.