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dotnet project convert

This article applies to: ✔️ .NET 10 SDK and later versions

Name

dotnet project convert - Converts a file-based program to a project-based program.

Synopsis

dotnet project convert <FILE> [--dry-run] [--force] [--interactive]
    [-o|--output <OUTPUT_DIRECTORY>]

dotnet project convert -h|--help

Description

The dotnet project convert command converts a file-based program to a project-based program. This command creates a new directory named for your file, scaffolds a .csproj file, moves your code into a file with the same name as the input file, and translates any #: directives into MSBuild properties and references.

This makes the transition seamless, from a single file to a fully functional, buildable, and extensible project. When your file-based app grows in complexity, or you simply want the extra capabilities afforded in project-based apps, you can convert it to a standard project.

Conversion process

The command performs the following operations:

  1. Creates a new directory named after the input file (without extension).
  2. Generates a .csproj file with appropriate SDK and properties.
  3. Moves the source code to a file with the same name as the input file.
  4. Removes #: directives from the source code.
  5. Translates #:sdk directives: the first #:sdk directive becomes the <Project Sdk="Sdk.Id"> or <Project Sdk="Sdk.Id/version"> attribute, and any additional #:sdk directives become <Sdk Name="Sdk.Id" /> or <Sdk Name="Sdk.Id" Version="version" /> elements.
  6. Translates #:package directives to <PackageReference> elements in the project file.
  7. Translates #:property directives to MSBuild properties in the project file.
  8. Sets appropriate MSBuild properties based on the SDK and framework detected.

Arguments

  • FILE

    The path to the file-based program to convert. The file must be a C# source file (typically with a .cs extension).

Options

  • --dry-run

    Determines changes without actually modifying the file system. Shows what would be created or modified without performing the conversion.

  • --force

    Forces conversion even if there are malformed directives. By default, the command fails if it encounters directives that cannot be properly parsed or converted.

  • --interactive

    Allows the command to stop and wait for user input or action. For example, to complete authentication.

  • -o|--output <OUTPUT_DIRECTORY>

    Specifies the output directory for the converted project. If not specified, a directory is created with the same name as the input file (without extension) in the current directory.

  • -?|-h|--help

    Prints out a description of how to use the command.

Examples

  • Convert a file-based program to a project:

    dotnet project convert app.cs

    Given a folder containing app.cs with the following content:

    #:sdk Microsoft.NET.Sdk.Web
#:package Microsoft.AspNetCore.OpenApi@10.*-*

var builder = WebApplication.CreateBuilder();

builder.Services.AddOpenApi();

var app = builder.Build();

app.MapGet("/", () => "Hello, world!");
app.Run();

    Running dotnet project convert app.cs results in a folder called app containing:

    app/app.cs:

    var builder = WebApplication.CreateBuilder();

builder.Services.AddOpenApi();

var app = builder.Build();

app.MapGet("/", () => "Hello, world!");
app.Run();

    app/app.csproj:

    <Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net10.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
    <PublishAot>true</PublishAot>
    <PackAsTool>true</PackAsTool>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.*-*" />
  </ItemGroup>

</Project>

  • Convert a file-based program to a project in a specific output directory:

    dotnet project convert app.cs --output MyProject

See also

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