As a SharePoint developer myself and producer of SharePoint Development “How-to’s”, I find myself constantly answering questions on ”How to debug SharePoint Applications”. To that point, Andrew Connell, a Microsoft MVP has published a series of Debugging and Logging tips and tricks for SharePoint Developers.
From his description:
I've long needed a single source to point people to when it comes to debugging and logging in SharePoint. I'm sure someone will say "oh look at my post" in a comment when this is read... please feel free to add comments to this post pointing to your debugging tricks.
When developers get tripped up with a nasty bug or something when building custom components in SharePoint, from Web Parts to server controls or even custom Features without a line of custom code (just loaded up with CAML)... well, effective debugging and logging can turn into being a developers best friend and get them out of a bind.
In my mind for you to be a SharePoint developer worth your pay, you must know how troubleshoot... heck... to be any kind of developer, you MUST know how to troubleshoot on your own. The trick is SharePoint can be quite daunting for those new to the platform and need a little help. Hopefully what follows will help you too!
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~Robert Shelton