System.Text.Json.JsonSerializer.Serialize ignores JsonPropertyName on abstract properties

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

---

Consider the following code:

abstract class A
{
    [JsonPropertyName("id")]
    public abstract string Id { get; }
}
class B : A

{

public override string Id => "Value";

}

When serializing an instance of type B:

Expected: JsonPropertyName to affect inheriting class

{"id":"Value"}

Actual: JsonPropertyName has no effect

{"Id":"Value"}

Note: This behavior differs from the one in Newtonsoft.Json and in my opinion is more error prone.

---

Original Comments

Feedback Bot on 7/20/2020, 03:33 AM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

---

Original Solutions

(no solutions)

[layomia]

This is known/by design. Properties cannot inherit System.Text.Json attributes. The attributes need to be placed on each (de)serializable override.