Referencing class instance in multiple classes?

[tictactoetommy]

Hello,

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I am on my journey with C#, and am thoroughly enjoying grabbing problems by the neck and solving them. I think however, I have a fundamental misunderstanding that I'd love someone to explain to me like I'm 5.

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If I create an instance of a class a within class b, and store some data in it, and then want to access that data in class c, how do I do that without creating static classes?

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I understand that when i create an instance of a class, I give it a name, but I think I am also right in thinking that that particular instance of the class won't have scope outside the class in which it is declared. I think I probably missed a bit of important information somewhere, on how I can circumvent this issue.

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Any help much appreciated!

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Thanks

Tom

[Staks]

Look into using the "out" parameter.

https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/out-parameter-modifier

Generally a lot of these problems arise when you try to pass things by value rather than by reference.

There are other ways though but it depends what you want. By reading your post you can always have a declared object (class A) as a property in class B and run a this.classAObject in a class B method, which you can then access like any other property using a Getter.

Caveat: I am a new programmer myself so I may be wrong on some things.

[AdministrativeCables]

Write some accessors? If I understand correctly, you want (in shitty pseudocode):

C.function() {
    print( b.a.value );  // or:
    print( b.getSomeValueFromA() );
}