Legacy Documentation: Version 5.4
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.


Suggest a change


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.


Sumbission failed

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



Switch to Manual
public function IsChildOf(parent: Transform): bool;
public bool IsChildOf(Transform parent);



Is this transform a child of parent?

Returns a boolean value that indicates whether the transform is a child of a given transform. true if this transform is a child, deep child (child of a child) or identical to this transform, otherwise false.

	function OnTriggerEnter (col : Collider) {
		// Ignore trigger events if between this collider and colliders in children
		// Eg. when you have a complex character with multiple triggers colliders.
		if (col.transform.IsChildOf(transform))
		print("Do something here");
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void OnTriggerEnter(Collider col) { if (col.transform.IsChildOf(transform)) return; print("Do something here"); } }