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Visual Studio Solution files contain two GUID's per project entry. I figure one of them is from the AssemblyInfo.cs
Does anyone know for sure where these come from, and what they are used for?
920
The . sln file contains text-based information the environment uses to find and load the name-value parameters for the persisted data and the project VSPackages it references. When a user opens a solution, the environment cycles through the preSolution , Project , and postSolution information in the .
Project GUIDs Uniquely Identify Projects Visual Studio uses project GUIDs to identify different project files and their dependencies in a solution file, as well as for references between projects inside a single solution file. For this to work, it needs all project GUIDs to be unique inside a solution file.
Using Visual Studio 2015 Go to New -> Website -> Select the root directory of the website in need of a new . sln file -> Next -> It will ask to create new site in directory or open the website in directory, obviously select the latter.
Neither GUID is the same GUID as from AssemblyInfo.cs (that is the GUID for the assembly itself, not tied to Visual Studio but the end product of the build).
So, for a typical line in the sln file (open the .sln in notepad or editor-of-choice if you wish to see this):
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleSandbox", "ConsoleSandbox\ConsoleSandbox.csproj", "{55A1FD06-FB00-4F8A-9153-C432357F5CAC}"
The second GUID is a unique GUID for the project itself. The solution file uses this to map other settings to that project:
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{55A1FD06-FB00-4F8A-9153-C432357F5CAC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{55A1FD06-FB00-4F8A-9153-C432357F5CAC}.Debug|Any CPU.Build.0 = Debug|Any CPU
{55A1FD06-FB00-4F8A-9153-C432357F5CAC}.Release|Any CPU.ActiveCfg = Release|Any CPU
{55A1FD06-FB00-4F8A-9153-C432357F5CAC}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
The first GUID is actually a GUID that is the unique GUID for the solution itself (I believe). If you have a solution with more than one project, you'll actually see something like the following:
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleSandbox", "ConsoleSandbox\ConsoleSandbox.csproj", "{55A1FD06-FB00-4F8A-9153-C432357F5CAC}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Composite", "..\CompositeWPF\Source\CAL\Composite\Composite.csproj", "{77138947-1D13-4E22-AEE0-5D0DD046CA34}"
EndProject
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