Unity UI extended components, other script cannot get the reference of these component?

I created a ScrollRectEx, which is a extended class from ScrollRect according to the scripts on Internet. And I added some custom values.

Then I created another monobehaviour script, and try to get the ScrollRectEx component, it's ALWAYS null. Both components are on the same GameObject.

I tried "GetComponent()", it's null. I also tried using public and [SerializeField] on the ScrollRectEx field, and assign this field with that component by drag&drop, it's still null.

What is going on?

 

You can definitely extend Unity UI's components and get references to them. We're doing it all the time.

Could you show the code you're using to get the reference? Is the script file containing ScrollRectEx also called ScrollRectEx.cs?

 

It was my mistake, I have another game object which have this script on it, and the error message is from the other game object.

case closed.

 

@mikael_juhala, I wrote a custom script that extends UI.Slider and added some public variables.
This should expose the additional variables to the Inspector, but it doesn't.

The sample code is here : https://forum.unity3d.com/threads/t...ing-apple-remote-touch-panel-in-unity.435901/

Is this an intended behaviour?

 

You also need to provide an Editor for your extended Slider, otherwise the default editor is used (it doesn't draw the fields you added). Take a look at the Slider editor: here

 

I really appreciate your kind help. Have a nice day!