System.Text.Json ignores properties that override the setter only.

[eiriktsarpalis]

A bit of a rare corner case, but the serializer isn't currently handling properties that only override the setter:

using System.Text.Json;

string json = JsonSerializer.Serialize(new Derived { X = 42 });
Console.WriteLine(json); // {}

public class Base
{
    public virtual int X { get; set; }
}

public class Derived : Base
{
    public override int X { set => base.X = value; }
}

This is because the serializer only inspects the signature of the override, but it should instead try to honor the signature of the base definition. Impacts both reflection and source generated serializers.

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Issue Details

---

A bit of a rare corner case, but the serializer isn't currently handling properties that only override the setter:

using System.Text.Json;

string json = JsonSerializer.Serialize(new Derived { X = 42 });
Console.WriteLine(json); // {}

public class Base
{
    public virtual int X { get; set; }
}

public class Derived : Base
{
    public override int X { set => base.X = value; }
}

This is because the serializer only inspects the signature of the override, but it should instead try to honor the signature of the base definition. Impacts both reflection and source generated serializers.

Author:	eiriktsarpalis
Assignees:	-
Labels:	area-System.Text.Json
Milestone:	-