Version: 2022.3
LanguageEnglish
  • C#

SerializedProperty.managedReferenceValue

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

public object managedReferenceValue;

Description

The object assigned to a field with SerializeReference attribute.

For use when propertyType is SerializedPropertyType.ManagedReference.



The value object must be a type that is compatible with the base type of the managed reference field (that is, the managed reference field that the serialized property is referencing).

Additional resources: SerializeReference, propertyType, SerializedPropertyType.ManagedReference.

using System;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
using Object = UnityEngine.Object;

public class SerializedPropertyManagedReferenceValueExample : ScriptableObject { [Serializable] public class Item { public int m_data = 1;

public int DoCalculation() { // Could be querying some external data, or other calculation that cannot be // made entirely based on the local object state m_data++; return m_data * 2; } }

[SerializeReference] public Item m_Item;

[MenuItem("Example/SerializedProperty ManagedReferenceValue Example1")] static void TestMethod1() { var scriptableObject = ScriptableObject.CreateInstance<SerializedPropertyManagedReferenceValueExample>(); var serializedObject = new SerializedObject(scriptableObject);

// Allocate and assign an object to the m_Item field via managedReferenceValue var referenceProperty = serializedObject.FindProperty("m_Item"); referenceProperty.managedReferenceValue = new Item();

// Change a value of the object's field referenceProperty.FindPropertyRelative("m_data").intValue = 99;

// Apply the change back to the "live" object serializedObject.ApplyModifiedProperties();

// Will print "Value of m_data: 99" Debug.Log("Value of m_data: " + scriptableObject.m_Item.m_data); }

[MenuItem("Example/SerializedProperty ManagedReferenceValue Example2")] static void TestMethod2() { var scriptableObject = ScriptableObject.CreateInstance<SerializedPropertyManagedReferenceValueExample>(); scriptableObject.m_Item = new Item();

var serializedObject = new SerializedObject(scriptableObject); var referenceProperty = serializedObject.FindProperty("m_Item");

// The "live" referenced object can be accessed so we can call a method on it (referenceProperty.managedReferenceValue as Item).DoCalculation();

// The serialized state inside the SerializedObject is now out of data with the change // of m_data on the live object, but can be brought back in sync by calling Update() var serializedDataValue = serializedObject.FindProperty("m_Item.m_data").intValue; serializedObject.Update(); var updatedSerializedDataValue = serializedObject.FindProperty("m_Item.m_data").intValue;

// Will print: "Value of m_data before update: 1 and after update: 2" Debug.Log("Value of m_data before update: " + serializedDataValue + " and after update: " + updatedSerializedDataValue); } }