I've got a Visual Studio solution structured like so (simplified):
Root Folder
| Solution.sln
|
+---Build
|
+---Code
| +---Business Layer
| | | Business Layer.csproj
| +---Client
| | | Client.csproj
| |
| +---Data Access Layer
| | | Data Access Layer.csproj
| |
| +---Database
| | | Database.sqlproj
| |
| \---Database User Management
| | Database User Management.pssproj
|
+---Documentation
|
+---Packages
|
+---Tests
The tl;dr here is that all of my projects are stored under 2 separate folders. Code for... well the program code and Tests for the unit test projects.
However, in my .sln file, I've noticed these lines:
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Code", "Code", "{2C7E59FD-BA42-4D31-A5E0-818583B7E1EC}"
EndProject
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{1D1FDB9D-78EC-4552-B9EE-17E02E92FC2E}"
EndProject
These folders aren't projects, they're only for organising the projects so that I'm not mixing my unit test projects with the actual software projects.
Removing these lines from the .sln file basically puts all my projects under one node in the Solution Explorer tree, but seems to keep the folder structure.
What's also odd is it's only doing it for the Code and Tests Folders and not Documentation and Packages.
Is this how Visual Studio is supposed to organise projects?
EDIT: To answer why I'm even bothering to tinker with the .sln file. When I open it in Visual Studio it says it's got 8 projects to load, which is odd, since at the moment there's only 5. (x3 .csproj, x1 .pssproj and x1 .sqlproj)
That's simply how Visual Studio solution file format works. Though displaying between Project and EndProject, a folder is still a folder.