Razor pages with preprocessor directives don't format

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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When adding a razor script in a Blazor page or component

For example such as:

<EditForm Model="SomeModel">
<DataAnnotationsValidator />
@{#if DEBUG}
 <ValidationSummary />
@{#endif}
</EditForm>
  

The code will not be formatted no matter what, and not just in Visual Studio 2022, also in VS Code
I have attached VS 2022 version info:

VS_2022_Version.txt

VS Code:

> Version: 1.96.2 (user setup)
> Commit: fabdb6a30b49f79a7aba0f2ad9df9b399473380f
> Date: 2024-12-19T10:22:47.216Z
> Electron: 32.2.6
> ElectronBuildId: 10629634
> Chromium: 128.0.6613.186
> Node.js: 20.18.1
> V8: 12.8.374.38-electron.0
> OS: Windows_NT x64 10.0.22631

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Original Comments

Nicole Hu [MSFT] on 30/12/2024, 05:00 PM:

We have converted this feedback item to a problem. This change was done to better reflect the feedback’s nature. It will allow other developers to easily find it and engage on it.

Feedback Bot on 30/12/2024, 05:09 PM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

[davidwengier]

Hitting the following exception:

[CLaSP] [08:52:42.0729661] [null]:                    System.InvalidOperationException: Sequence contains more than one element                      at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)                      at Microsoft.CodeAnalysis.Razor.Formatting.CSharpFormatter.<GetCSharpIndentationCoreAsync>g__ExtractTriviaAnnotations|7_0(FormattingContext context, SyntaxNode formattedRoot, SourceText formattedText, Dictionary`2 desiredIndentationMap)                      at Microsoft.CodeAnalysis.Razor.Formatting.CSharpFormatter.<GetCSharpIndentationCoreAsync>d__7.MoveNext()                   --- End of stack trace from previous location where exception was thrown ---                      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()                      at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)                      at Microsoft.CodeAnalysis.Razor.Formatting.CSharpFormatter.<GetCSharpIndentationAsync>d__4.MoveNext()                   --- End of stack trace from previous location where exception was thrown ---                      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()                      at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)                      at Microsoft.CodeAnalysis.Razor.Formatting.CSharpFormattingPassBase.<AdjustIndentationAsync>d__8.MoveNext()                   --- End of stack trace from previous location where exception was thrown ---                      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()                      at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)                      at Microsoft.CodeAnalysis.Razor.Formatting.CSharpFormattingPass.<ExecuteCoreAsync>d__3.MoveNext()                   --- End of stack trace from previous location where exception was thrown ---                      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()                      at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)                      at Microsoft.CodeAnalysis.Razor.Formatting.CSharpFormattingPassBase.<ExecuteAsync>d__6.MoveNext()                   --- End of stack trace from previous location where exception was thrown ---                      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()                      at Microsoft.CodeAnalysis.Razor.Formatting.RazorFormattingService.<GetDocumentFormattingChangesAsync>d__10.MoveNext()                   --- End of stack trace from previous location where exception was thrown ---                      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()                      at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)                      at Microsoft.AspNetCore.Razor.LanguageServer.Formatting.DocumentFormattingEndpoint.<HandleRequestAsync>d__8.MoveNext()                   --- End of stack trace from previous location where exception was thrown ---                      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()                      at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)                      at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.<StartRequestAsync>d__17`2.MoveNext()