No collapse all feature available in solution explorer

Open

#2,197 opened on Aug 4, 2025 1 comment 1 reaction 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Needs clarification
Activity status: Stale
Tech stack: csharp, vscode
Domain: developer-experience, tooling

Research direction

Start with the C# Dev Kit Solution Explorer implementation and its tree commands; the issue names no source file or test. Reproduce the expanded Solution tree in VS Code, then identify the appropriate collapse-all entry point and verify that it collapses the entire tree.

Written by the indexing model from the issue text.

Description

Type: Bug

Issue Description

The C# Dev kit Solution Explorer has no collapse all feature to collapse the Solution tree.

Steps to Reproduce

Expected Behavior

Actual Behavior

Logs

C# log

Post the output from Output-->C# here

C# LSP Trace Logs

Post the output from Output-->C# LSP Trace Logs here. Requires the `C#` output window log level to be set to `Trace`

Environment information

VSCode version: 1.102.3
C# Extension: 2.84.19
Using OmniSharp: false

Dotnet Information

.NET SDK: Version: 9.0.302 Commit: bb2550b9af Workload version: 9.0.300-manifests.183aaee6 MSBuild version: 17.14.13+65391c53b

Runtime Environment:
OS Name: Windows
OS Version: 10.0.26100
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.302\

.NET workloads installed:
There are no installed workloads to display.
Configured to use loose manifests when installing new manifests.

Host:
Version: 9.0.7
Architecture: x64
Commit: 3c298d9f00

.NET SDKs installed:
9.0.301 [C:\Program Files\dotnet\sdk]
9.0.302 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 8.0.18 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.7 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 8.0.18 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 8.0.18 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.7 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Visual Studio Code Extensions

Extension	Author	Version	Folder Name
copilot	GitHub	1.350.0	github.copilot-1.350.0
copilot-chat	GitHub	0.29.1	github.copilot-chat-0.29.1
csdevkit	ms-dotnettools	1.30.44	ms-dotnettools.csdevkit-1.30.44-win32-x64
csharp	ms-dotnettools	2.84.19	ms-dotnettools.csharp-2.84.19-win32-x64
material-icon-theme	PKief	5.24.0	pkief.material-icon-theme-5.24.0
vscode-azurefunctions	ms-azuretools	1.18.1	ms-azuretools.vscode-azurefunctions-1.18.1
vscode-azureresourcegroups	ms-azuretools	0.11.1	ms-azuretools.vscode-azureresourcegroups-0.11.1
vscode-dotnet-runtime	ms-dotnettools	2.3.7	ms-dotnettools.vscode-dotnet-runtime-2.3.7
vscode-pull-request-github	GitHub	0.114.3	github.vscode-pull-request-github-0.114.3
vscodeintellicode-csharp	ms-dotnettools	2.2.3	ms-dotnettools.vscodeintellicode-csharp-2.2.3-win32-x64

Issue Description

Steps to Reproduce

Expected Behavior

Actual Behavior

Logs

C# log

Post the output from Output-->C# here

C# LSP Trace Logs

Post the output from Output-->C# LSP Trace Logs here. Requires the `C#` output window log level to be set to `Trace`

Environment information

VSCode version: 1.102.3
C# Extension: 2.84.19
Using OmniSharp: false

Dotnet Information

.NET SDK: Version: 9.0.302 Commit: bb2550b9af Workload version: 9.0.300-manifests.183aaee6 MSBuild version: 17.14.13+65391c53b

Runtime Environment:
OS Name: Windows
OS Version: 10.0.26100
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.302\

.NET workloads installed:
There are no installed workloads to display.
Configured to use loose manifests when installing new manifests.

Host:
Version: 9.0.7
Architecture: x64
Commit: 3c298d9f00

.NET SDKs installed:
9.0.301 [C:\Program Files\dotnet\sdk]
9.0.302 [C:\Program Files\dotnet\sdk]

Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Visual Studio Code Extensions

Extension	Author	Version	Folder Name
copilot	GitHub	1.350.0	github.copilot-1.350.0
copilot-chat	GitHub	0.29.1	github.copilot-chat-0.29.1
csdevkit	ms-dotnettools	1.30.44	ms-dotnettools.csdevkit-1.30.44-win32-x64
csharp	ms-dotnettools	2.84.19	ms-dotnettools.csharp-2.84.19-win32-x64
material-icon-theme	PKief	5.24.0	pkief.material-icon-theme-5.24.0
vscode-azurefunctions	ms-azuretools	1.18.1	ms-azuretools.vscode-azurefunctions-1.18.1
vscode-azureresourcegroups	ms-azuretools	0.11.1	ms-azuretools.vscode-azureresourcegroups-0.11.1
vscode-dotnet-runtime	ms-dotnettools	2.3.7	ms-dotnettools.vscode-dotnet-runtime-2.3.7
vscode-pull-request-github	GitHub	0.114.3	github.vscode-pull-request-github-0.114.3
vscodeintellicode-csharp	ms-dotnettools	2.2.3	ms-dotnettools.vscodeintellicode-csharp-2.2.3-win32-x64

Extension version: 1.30.44
VS Code version: Code 1.102.3 (488a1f239235055e34e673291fb8d8c810886f81, 2025-07-29T03:00:23.339Z)
OS version: Windows_NT x64 10.0.26100
Modes:

System Info

Item	Value
CPUs	13th Gen Intel(R) Core(TM) i5-1335U (12 x 2496)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	7.65GB (0.86GB free)
Process Argv	--crash-reporter-id c115fe4f-fcb2-463d-8744-ea1bfbe2249b
Screen Reader	no
VM	0%

A/B Experiments

vsliv368cf:30146710
vswsl492:30256859
binariesv615:30325510
vscrpc:30673769
h48ei257:31000450
nativeloc1:31344060
dwcopilot:31170013
6074i472:31201624
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythoneinst12:31285622
c7cif404:31314491
996jf627:31283433
pythonrdcb7:31342333
usemplatestapi:31297334
0aa6g176:31307128
747dc170:31275177
aj953862:31281341
generatesymbolt:31295002
convertfstringf:31295003
pylancequickfixf:31358881
9d2cg352:31346308
convertlamdat:31358880
usemarketplace:31343026
nesew2to5:31336538
agentclaude:31352135
4f60g487:31327383
nes-diff-11:31337487
replacestringexc:31350595
nes-set-on:31351930
6abeh943:31336334
yijiwantestdri0626-t:31336930
0927b901:31350571
f76d9909:31348711
45650338:31358607
0cj2b977:31352657

Dominant language: No language data
Stars: 321
Forks: 54
Avg merge: 2d 19h
Merged PRs (30d): 2

Contributor guide

No contributing guide indexed for this repository

First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

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More DevTools issues

No collapse all feature available in solution explorer

Assessment

Research direction

Description

Issue Description

Steps to Reproduce

Expected Behavior

Actual Behavior

Logs

C# log

C# LSP Trace Logs

Environment information

Issue Description

Steps to Reproduce

Expected Behavior

Actual Behavior

Logs

C# log

C# LSP Trace Logs

Environment information

Contributor guide

First steps

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