Dev Utils — Visual Studio 2022 Extension

A productivity extension for Visual Studio 2022 that automates common development tasks — interface extraction, DI registration, dependency injection analysis and code formatting — directly from the Solution Explorer context menu.

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Features

All commands are available via right-click on a project, folder, file or solution node under the Dev Utils submenu.

Batch Extract Interfaces

Scans all public, non-static classes in the selected project and generates IClassName interfaces in bulk. Adds the interface to the class's base list automatically and registers the new files in the project.

Generate DI Registration

Finds all IInterface → Class pairs in the project and generates a static extension class with a single IServiceCollection extension method containing all AddScoped<I, C>() calls.

DI Injection Analyzer

Analyzes the entire solution to find classes that use registered implementations via direct new ClassName() instantiation instead of constructor injection. Shows a dialog with status indicators:

Status	Meaning
✔ Safe	Can be injected without issues
⚠ Warning	Multiple constructors or edge cases detected
✖ Error	Direct new found in production code, static class, or primitive params
✔ Done	Already injected

Clicking Inject Selected will:

• Add a private readonly IInterface _field;
• Add or update the constructor parameter and assignment
• Replace all new ClassName(...) usages with the field reference
• Remove redundant local variable declarations
• Unwrap using (var x = new ClassName()) blocks

Format All Files

Formats all .cs files in the selected project or solution.

• Auto-detects strategy:
  • If no .editorconfig is found → runs dotnet format in the background (fast, no file opening)
  • If .editorconfig is found → uses Visual Studio's built-in Edit.FormatDocument command per file

All operations are logged to the Dev Utils pane in the Output window.

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Requirements

• Visual Studio 2022 (17.x)
• .NET Framework 4.7.2+
• For dotnet format fast path: .NET SDK installed

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Installation

Install directly from the Visual Studio Marketplace or search for Dev Utils in Extensions → Manage Extensions inside Visual Studio.

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Building from Source

git clone https://github.com/DiegoSDeveloper/DevUtilsExtensionVS.git
cd DevUtilsExtensionVS

Open DevUtils.ExtensionVS.sln in Visual Studio 2022 and press F5 to launch the experimental instance.

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License

MIT — see LICENSE.txt