JsonTypeInfo.OnSerializing Property

Definition

Namespace:

System.Text.Json.Serialization.Metadata

Assembly:

System.Text.Json.dll

Package:

System.Text.Json v9.0.0-preview.3.24172.9

Source:

JsonTypeInfo.cs

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

public:
 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

Action<Object>

Exceptions

InvalidOperationException

The JsonTypeInfo instance has been locked for further modification.

-or-

Serialization callbacks are only supported for Object metadata.

Remarks

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