C# 10: Disable Global Using

Question

How can I disable the new default global usings in C# 10 (see here: https://github.com/dotnet/aspnetcore/issues/32451)?

I want to see the used namespaces at a glance and don't want to look up the documentation which namespaces are used globally.

Answer 1

<ImplicitUsings>disable</ImplicitUsings> has to be added to the PropertyGroup in the csproj-file.

For example:

<Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <TargetFramework>net6.0</TargetFramework>
        <Nullable>enable</Nullable>
        <ImplicitUsings>disable</ImplicitUsings>
    </PropertyGroup>
</Project>

If you are using a beta version of .NET 6, you will have to use <DisableImplicitNamespaceImports>true</DisableImplicitNamespaceImports>.

Answer 2

In my case I had to remove

<ImplicitUsings>enable</ImplicitUsings>

from csproj