Although VS 2005 now supports IntelliSense for web.config files in your web project, this functionality seems to be broken sometimes.
Here's a fix, provided by Scott Guthrie:
There is one gotcha to be aware of, though, that can sometimes cause intellisense for the web.config file to stop working in the IDE. This happens when a default namespace is added to the root element. For example, like so:
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
This doesn’t cause any runtime problems – but it does stop intellisense completion happening for the built-in .NET XML elements in the web.config file.
The bad news is that the built-in web admin tool (launched via the WebSite->ASP.NET Configuration menu item in VS 2005 and Visual Web Developer) always adds this xmlns namespace when it launches – so if you use this tool to manage users/roles you’ll end up having it added to your web.config file for you.
How to fix this gotcha:
To get intellisense back when you are editing the web.config file in the IDE, just delete the xmlns reference and have the root configuration element look like so:
<configuration>
Everything will then work fine again.
Thanks, Scott!
Source:
ScottGu's blog
