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Support for .slnx Solution Format Not Yet Implemented #19767
Description
Hello CodeQL team,
I would like to raise awareness that the newer .slnx solution format introduced by Microsoft is currently not supported by the C# extractor in CodeQL.
The following line in the source suggests that only traditional .sln files are recognized:
As outlined in the official announcement by Microsoft:
https://devblogs.microsoft.com/dotnet/introducing-slnx-support-dotnet-cli/
.slnx files are designed to work seamlessly with the .NET CLI and represent a modern evolution of solution management in .NET ecosystems. As adoption increases, support in CodeQL would ensure compatibility with a broader range of real-world .NET projects.
Is there any plan or roadmap item to add support for .slnx?
Activity
hvitved commentedon Jun 16, 2025
Hi
Thanks for bringing this to our attention; it's not on our roadmap right now, but I'll make sure to add it to our backlog.
samtrion commentedon Jun 16, 2025
@hvitved
If possible please add
.slnfalso (https://learn.microsoft.com/en-us/visualstudio/msbuild/solution-filters?view=vs-2022)michaelnebel commentedon Dec 12, 2025
It looks like solution filters are primarily used to only load/build a subset of a solution (e.g. for easy of development). However, I think that even in the presence of a solution filter, the autobuilder should attempt to build the entire solution (and not just the subset mentioned in the filter).
For
build-mode: nonesolution files are primarily used for "bulk" restoring projects (as this is typically faster than restoring the projects individually). In this case, I think we should also use the solution files instead of the filters to restore as much as possible.Support for
.slnxwill be introduced here.