c# - Roslyn Add a document to a project

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c# - Roslyn Add a document to a project

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

I'm running roslyn ctp2

I am attempting to add a new html file to a project

IWorkspace workspace = Workspace.LoadSolution("MySolution.sln");
var originalSolution = workspace.CurrentSolution;
ISolution newSolution = originalSolution;
newSolution.GetProject(newSolution.ProjectIds.First())
                        .AddDocument("index.html", "<html></html>");
workspace.ApplyChanges(originalSolution, newSolution);

This results in no changes being written. I am trying to get the new html file to appear in VS

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1 Answer

深蓝 · Answer 1 · 2021-10-23T19:14:45+0000

There are two issues here:

Roslyn ISolution, IProject, and IDocument objects are immutable, so in order to see changes you would need to create a new ISolution with the changes, then call Workspace.ApplyChanges().
In Roslyn, IDocument objects are only created for files that are passed to the compiler. Another way of saying this is things that are part of the Compile ItemGroup in the project file. For other files (including html files), you should use the normal Visual Studio interfaces like IVsSolution.

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