How to exclude property from Json Serialization

Question

I have a DTO class which I Serialize

Json.Serialize(MyClass)

How can I exclude a public property of it?

(It has to

Answer 1

If you are using System.Text.Json then you can use [JsonIgnore].
FQ: System.Text.Json.Serialization.JsonIgnoreAttribute

Official Microsoft Docs: JsonIgnoreAttribute

As stated here:

The library is built-in as part of the .NET Core 3.0 shared framework.
For other target frameworks, install the System.Text.Json NuGet package. The package supports:

• .NET Standard 2.0 and later versions
• .NET Framework 4.6.1 and later versions
• .NET Core 2.0, 2.1, and 2.2