Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 13 Next capture
2021 2022 2023
1 capture
13 Jun 22 - 13 Jun 22
sparklines
Close Help
  • 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
0
Question by RafaelCN · May 02, 2013 at 10:37 PM · guitexturebutton

Null reference exception[SOLVED]

Hi everyone, i had an error:

"NullReferenceException: Object reference not set to an instance of an object"

I was trying to put an image to a button, like this:

  public Texture[]  buttonTxt        = new Texture[10];
     
 void OnGUI() {   
 if(createButtonT(50, 50, 100, 30, buttonTxt[0], style)) {
                     
                 }
 }

he throws a exception as you can see, but i've looking for the answer for my question and i didn't found a case like the mine. My cretaButtonT() is a method that creates a button with a texture, seated on other script:

 public bool createButtonT(float left, float top, float width, float height, Texture content, GUIStyle style) {
         return     GUI.Button(new Rect((screenX-screenX)+left, (screenY-screenY)+top, width, height), content, style);
     }
     

Thanks for who will help me =)

Comment
Add comment · Show 8
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 hoy_smallfry · May 02, 2013 at 11:11 PM 0
Share

We have no idea where your NullReferenceException is co$$anonymous$$g from, can you show us which line its referring to?

avatar image hoy_smallfry · May 02, 2013 at 11:21 PM 1
Share

With what you've given, my vague guess is that buttonTxt[0] is null because you have not initialized it. the line public Texture[] buttonTxt = new Texture[10]; creates an array, but it does not fill it with valid content.

avatar image RafaelCN · May 02, 2013 at 11:45 PM 0
Share

how can i fill with valid content? I've filled in inspector of the Unity editor. Well the null reference entire error is here:

NullReferenceException: Object reference not set to an instance of an object UnityEngine.GUI.Button (Rect position, UnityEngine.GUIContent content, UnityEngine.GUIStyle style) (at C:/BuildAgent/work/14194e8ce88cdf47/Runtime/ExportGenerated/Editor/GUI.cs:248) UnityEngine.GUI.Button (Rect position, UnityEngine.Texture image, UnityEngine.GUIStyle style) (at C:/BuildAgent/work/14194e8ce88cdf47/Runtime/ExportGenerated/Editor/GUI.cs:225) mainClass.createButtonT (Single left, Single top, Single width, Single height, UnityEngine.Texture content, UnityEngine.GUIStyle style) (at Assets/_gameAssets/_scripts/mainClass.cs:53) clarinete.OnGUI () (at Assets/_gameAssets/_scripts/clarinete.cs:28)

avatar image RafaelCN · May 03, 2013 at 03:55 AM 0
Share

i'd solved, the problem was on the declaration of an GUIStyle, where the GUIStyle has to be public!

avatar image ExTheSea · May 03, 2013 at 03:41 PM 0
Share

If you solved your problem please clos the question.

Show more comments

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by GoGamingJoe · May 24, 2014 at 04:37 PM

For Me It Was Because It Was Static

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

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.

Follow this Question

Answers Answers and Comments

16 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

Related Questions

Creating a component from a button click 1 Answer

Load an image from www and save it for offline use 0 Answers

GUI.button Texture shows up in Unity but doesn't show on android device. 1 Answer

GuiTexture (Touch button) unfollow camera! 1 Answer

GUI Texture on Button Swap 3 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