ProxyInterfaceGenerator 0.13.0 

dotnet add package ProxyInterfaceGenerator --version 0.13.0
                    


                    

                
NuGet\Install-Package ProxyInterfaceGenerator -Version 0.13.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="ProxyInterfaceGenerator" Version="0.13.0">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="ProxyInterfaceGenerator" Version="0.13.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="ProxyInterfaceGenerator">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add ProxyInterfaceGenerator --version 0.13.0
                    


                    

                
#r "nuget: ProxyInterfaceGenerator, 0.13.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package ProxyInterfaceGenerator@0.13.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=ProxyInterfaceGenerator&version=0.13.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=ProxyInterfaceGenerator&version=0.13.0
                    


                            Install as a Cake Tool

ProxyInterfaceGenerator

This project uses Source Generation to generate an interface and a Proxy class for classes. This makes it possible to wrap external classes which do not have an interface, in a Proxy class which makes it easier to Mock and use DI.

It supports:

  • properties
  • methods
  • events
  • implicit and explicit operators

Info

Given: an external existing class which does not implement an interface

public sealed class Person
{
    public string Name { get; set; }

    public string HelloWorld(string name)
    {
        return $"Hello {name} !";
    }
}

Create a partial interface And annotate this with ProxyInterfaceGenerator.Proxy[...] and with the Type which needs to be wrapped:

[ProxyInterfaceGenerator.Proxy(typeof(ProxyInterfaceConsumer.Person))]
public partial interface IPerson
{
}

When the code is compiled, this source generator creates the following two items:

1. An additional partial interface Which defines the same properties and methods as in the external class.

public partial interface IPerson
{
    string Name { get; set; }

    string HelloWorld(string name);
}

2. A Proxy class Which takes the external class in the constructor and wraps all properties and methods.

public class PersonProxy : IPerson
{
    public Person _Instance { get; }

    public PersonProxy(Person instance)
    {
        _Instance = instance;
    }

    public string Name { get => _Instance.Name; set => _Instance.Name = value; }

    public string HelloWorld(string name)
    {
        string name_ = name;
        var result_19479959 = _Instance.HelloWorld(name_);
        return result_19479959;
    }
}

Use it

IPerson p = new PersonProxy(new Person());
p.Name = "test";
p.HelloWorld("stef");

Sponsors

Entity Framework Extensions and Dapper Plus are major sponsors and proud to contribute to the development of ProxyInterfaceSourceGenerator.

Entity Framework Extensions

Dapper Plus

There are no supported framework assets in this package.

Learn more about Target Frameworks and .NET Standard.

  • .NETStandard 2.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.13.0 60 8/30/2026
0.12.0 57 8/30/2026
0.11.0 870 9/5/2025
0.10.0 301 9/4/2025
0.9.1-preview-01 427 8/6/2025
0.9.0.1 490 6/13/2025
0.9.0 3,859 1/24/2025
0.8.1 292 1/20/2025
0.8.0 267 1/14/2025
0.5.0 322 1/6/2025
0.4.0 487 9/30/2024
0.3.0 321 9/24/2024
0.2.0 312 9/23/2024
0.1.0 409 4/28/2024
0.0.38 333 4/23/2024
0.0.37 564 12/6/2023
0.0.36 461 10/10/2023
0.0.35 501 3/2/2023
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# 0.13.0 (30 August 2026)
- #95 Support NullableAnnotation.None [enhancement]

The full release notes can be found here: https://github.com/StefH/ProxyInterfaceSourceGenerator/blob/main/ReleaseNotes.md