JsonTypeInfo.OnSerializing Property


Gets or sets a callback to be invoked before serialization occurs.

 property Action<System::Object ^> ^ OnSerializing { Action<System::Object ^> ^ get(); void set(Action<System::Object ^> ^ value); };
public Action<object>? OnSerializing { get; set; }
member this.OnSerializing : Action<obj> with get, set
Public Property OnSerializing As Action(Of Object)

Property Value


The JsonTypeInfo instance has been locked for further modification.


Serialization callbacks are only supported for Object metadata.


For contracts originating from DefaultJsonTypeInfoResolver or JsonSerializerContext, the value of this callback will be mapped from any IJsonOnSerializing implementation on the type.

Applies to