How we Use the C# Nullable Features

Using the latest C# language features is important for us, because it allows us to write better code.

For example, we can do this:

public class MyClass
{
    public SomeObject? MyProperty { get; init; }
}

To make this possible, all the .csproj files need to have the following settings:

<PropertyGroup>
  <Nullable>enable</Nullable>
</PropertyGroup>

But there is a problem: It's not supported by all the .NET runtimes we are using. To make it work anyhow, we also have to add the proper nullable nuget package - but only in net472. This is done like this in each .csproj file:

<!-- Support Nullable in .net Framework -->
<ItemGroup Condition="$(TargetFramework) == 'net472'">
  <PackageReference Include="Nullable" Version="1.3.1">
    <PrivateAssets>all</PrivateAssets>
    <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
  </PackageReference>
</ItemGroup>

Table of Contents

How we Use the C# Nullable Features