Question Override Base UnityEngine Class (Button)

The code is:

Code (CSharp):

1. public new class Button : Selectable, IPointerClickHandler, ISubmitHandler

Unity gives an error:

Assets\Game\Scripts\NewOverride\Button.cs(10,22): error CS0106: The modifier 'new' is not valid for this item

The goal is to expand base button functionality, while keeping same class. Because class Button is used in many other things which i can not replace;

Writing new Button class derided from Button, and write many other components for new button is not an option.

 

That's not a legal class declaration in C#, keyword new is not allowed in a non-nested class declaration.

The syntax is

Code (csharp):

1. class_declaration
2.      : attributes? class_modifier* 'partial'? 'class' identifier
3.          type_parameter_list? class_base? type_parameter_constraints_clause*
4.          class_body ';'?     ;

new

is considered a class_modifier

 

Ok, i see. Thanks.

is there in C# methods to override(replace) Button class with my variant?

 

What do you hope to achieve with it? What you described isn't a good practice.
In C# you either override a class with a specific

using

clause

Code (csharp):

1. using Button = MyButtons.Button;

or you can perhaps create a locally nested

Button

override.

 

Even if you are successful, your Button absolutely WILL NOT be the same class to those other Buttons already in your project. That's not how objects work.

Don't use this approach. Make a Component that interoperates with the Button to add the functionality. You might use other Components (such as EventTrigger) to bridge between your code and the button.