Hi there, I've spent a great long while googling this problem without any luck and I've always found great answers here, so here it goes:
[BACKGROUND]
I have a web application which was developed in C# with Visual Studio 2008. It was a part of a solution with another project which contained a web service. This was not created "IN" IIS (I was using the Cassini ASP.NET Development Server at first, but have encountered numerous issues). I finally got approval to install IIS 5.1 (Government Network - using Windows XP) so I wanted to host my apps there for development.
I moved my projects to another folder created my IIS virtual directories, pointed them at the right location, updated my security settings, ensured that .NET 2.0 was selected and tested the site and web service. They function perfectly in IIS.
[ACTUAL PROBLEM]
I open Visual Studio, click File > Open > Web Site > Local IIS > [Application Name] and it opens up, but my .design files aren't nested under the ASPX / ASCX objects, and when I right click on it and select "View Code" it takes me to the markup instead of the code behind. Once I reach the code behind, I don't have access to any of the members of the design, as though there was a problem with the wire up.
I have tried creating a web site from IIS through Visual Studio, and it works perfectly. I closed it and opened it up again to see if that functionality would persist and it did.
I've encountered this before and have had to re-create a new site through Visual Studio, and manually re-populate it with all of my classes from a "broken" solution. I would love to solve this the correct way.
Please help!
Adam