Settings > Text Editor > C# > Code style > Formatting > Spacing - Not all previews work

[vsfeedback]

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

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[severity:It's more difficult to complete my work] [regression] [worked-in:16.9] Repro steps:

1. Open a C# project.
2. Open Text Editor > C# > Code style > Formatting > Spacing
3. The following settings don't update the preview pane when toggled with the space-bar or mouse-click on the checkbox:
   • "Insert space within parentheses of expessions"
   • "Insert space within parentheses of type casts"
   • "Insert space after cast"
   • "Insert space before open square bracket"
   • And many others. Many options' previews do work, but not others. I can't see a pattern as to why some work and others don't.

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Original Comments

Feedback Bot on 5/10/2021, 07:40 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.

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Original Solutions

(no solutions)

[Youssef1313]

I can't reproduce. It works for me.

[daiplusplus]

@Youssef1313 I can reproduce it consistently. VS16.9.5.

[ElimGarak]

I can reproduce this bug with C++ code, in VS2019 (16.11.12), VS2022 (17.2.0), and VSCode (1.66.2).

The previews work but the formatting of the code does not change after you select Format Document. Spaces within parenthesis of function calls are not being inserted.

[CyrusNajmabadi]

@ElimGarak did you mean to say C++? Roslyn definitely doesn't have anything to do with that.

[bravequickcleverfibreyarn]

Microsoft Visual Studio Enterprise 2022 Version 17.11.2 VisualStudio.17.Release/17.11.2+35222.181

Still exists. Behavior:

preview not switch after selection, checkbox change only triggers preview

• Insert space within parentheses of expressions
• Insert space within parentheses of type cast

preview not switch but change works (implies preview trigger)

• Insert spaces withing parentheses of control flow statements

preview switches but change does nothing

• Insert space after cast
• whole Set spacing for brackets

[CyrusNajmabadi]

Still exists

The issue is on the backlog. So it will likely only be fixed if it gets moved to a particular release, or if a community member contributes a fix. Thanks!

[daiplusplus]

or if a community member contributes a fix

...only if the responsible program-code for this issue is 100% in the Roslyn codebase in this repo and not the Visual Studio codebase.

Are you confident that it is in Roslyn (and not the non-Roslyn parts of VS) - if so, is there any documentation about the code-formatting-preview feature so we can try to fix it ourselves?

[CyrusNajmabadi]

This code is in the Roslyn codebase. :-)

[daiplusplus]

_{(This reply is more of a note-to-self than a reply, but anyway)}

This code is in the Roslyn codebase. :-)

...so for the past umpteen years I thought this repo was just the C# compiler and LSP - and nothing to do with VS integration.

Nope! - I was wrong 😳: turns out the C# VS gubbins are all here: https://github.com/dotnet/roslyn/tree/a69841b8ca9751bee0fe9fdeedc705e198e195d9/src/VisualStudio/CSharp/Impl

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Slight problem: I use the LTSC Branch of Visual Studio (so am on 17.10.6), presumably I'll need a Current-branch install (side-by-side OK?) with 17.11.2 to ensure the latest code in the repo actually runs - or should I use the Preview branch?

[CyrusNajmabadi]

You can install the latest vs preview side by side with your other versions of VS. You can develop and test Roslyn's main branch against this version of VS. There should be instructions on the main Roslyn page. Thanks!