• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
1
Question by cekoivisto · Jul 22, 2017 at 09:17 AM · gameobjects

Can't delete UI elements using Destroy()

Let's say I have a scene as follows: MainCamera Canvas --Image ----Panel

Where Canvas, Image, and Panel are all UI elements. I would like to delete the Panel object entirely through c#. Here's what did:

Destroy(image.transform.GetChild(0).gameObject); Debug.Log(parent.transform.childCount); //Still logs 1 even though I just deleted it

I thought that maybe it was just deleting the gameObject and not the entire thing so I tried:

Destroy(image.transform.GetChild(0)); //Gives me an error saying that the image script relies on the //rect transform for the image object and therefore can't be deleted Debug.Log(parent.transform.childCount);

What should I do? There must be a way to destroy UI elements like this.

Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

2 Replies

· Add your reply
  • Sort: 
avatar image
0

Answer by KT21 · Apr 28, 2018 at 03:54 AM

Super late, but I just saw this when I ran into this problem.

Destroy(image.transform.GetChild(0).gameObject); Debug.Log(parent.transform.childCount); //Still logs 1 even though I just deleted it

The Destroy statement is right and is why the second version doesn't work. To destroy the actual object you need to send in the gameobject. I think your debug statement is just telling you the wrong thing. I'm not sure what parent is referring to, but if it is the parent of the Image (the Canvas) then it makes sense that transform.childCount is equal to 1 because you just deleted the panel.

Comment
Add comment · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image
0

Answer by Lili-Shi · Jul 22, 2017 at 12:03 PM

Here are my questions for a solution:

  • -Have you tried attaching that script to a GO (GameObject)?

  • -Have you tried calling Destroy() in the Start-/Awake-function, to test it?

  • -Have you tried creating a Method and calling it, when you press a certain button (either UI or on your keyboard)?

  • -Have you checked if the hierarchical structure is correct (in specific I mean the inheritence-tree of each GO)?

And here's a little tip: If you try to destry a GameObject, always explicitely express that in the Destroy()-call, like this: Destroy(myGO.gameObject);. Doing this might save you some headaches. However, if you try destroying a script (or anything from a GO, without destroying the GO itself) use GetComponent (you know how GetComponent works. I would like to show, but due to inline-HTML formatting I can't properly use >< these brackets...).

Comment
Add comment · Show 1 · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image LockedFire · Feb 10, 2021 at 03:34 PM 1
Share

yuppp . . the Destroy() was deleting the image but not the text (which is a child of it) . . i added ".gameobject" and worked thanks.

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

If you’re new to Unity Answers, please check our User Guide to help you navigate through our website and refer to our FAQ for more information.

Before posting, make sure to check out our Knowledge Base for commonly asked Unity questions.

Check our Moderator Guidelines if you’re a new moderator and want to work together in an effort to improve Unity Answers and support our users.

Follow this Question

Answers Answers and Comments

71 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Looking for a tutorial on placing prefabs and snapping 0 Answers

How to make an undo redo system in runtime for GameObjects? 2 Answers

Cameras Shakes Near Small Objects In-Game and In-Scene 0 Answers

Multiple Fire Points 2 Answers

Prebuilt gameobject bundles without Prefab instancing behavior. 0 Answers


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges