Understanding Arrays

[The Han]

I have an assignment that requires the use of arrays.
I need to know how to call an array from button to button.
The array is developed under the code of button A and needs to be used for calculations in the code of button B.
Also, they cannot be form-level.

[jmcilhinney]

On the subject of terminology, you don't call an array. The only things that get called are methods. Arrays and other objects would be accessed. Also, you're not passing anything from Button to Button. You have no code under your Buttons. The Buttons raise their Click event and that's it. You have methods that handle those Click events but those methods are members of the form. All your code is in the form and none of it in the Buttons.

As for the question, you're going to have to provide a more detailed explanation because what you're asking for sounds impossible. There's no issue using the same object in two separate methods but it is simply not possible to access a variable created in one method from another method. You can declare array variables in two different methods and assign the same array object to them no problem, but where does the array come from in the first place? If you create it in one of the methods and assign it only to the variable declared in that method then, as soon as the method completes, the variable loses scope and therefore ceases to exist. The array object it referred to continues to exist but there is no way to access it. The way you retain access to an object between method calls is to assign it to some other field or property, which is why your requirement not to do that seems to take the whole thing into the realms of fantasy.

Please provide a FULL and CLEAR explanation of the problem. While I never advocate people simply posting their assignment questions and expecting us to do their work for them, in this case I think that we need to see the actual assignment question to first determine whether it makes sense and then determine whether you have misinterpreted something.

[The Han]

I apologize for my terrible use of terminology, however I am in an Programming Logic and Design Introductory Course.

So, in short, you are saying that in order for two button click event methods to use the same 3 arrays, the arrays must have form-level declaration?

I had to skip the class in which we discussed arrays in vb, so I had to play around to figure out how to use them, again I apologize for my Noob level.

[jmcilhinney]

If you want to access the same object from multiple methods then the object must be stored in a location that is accessible to all those methods. That means a variable, outside all of them.

[MattP]

To add to John's answer you'll want to look at the Scope of the arrays.

[Evil_Giraffe]

I think you might be slightly confused as to what the assignment requires. Perhaps if you posted the assignment, we might be able to provide better help?

[The Han]

I was slightly confused as to what my assignment was asking, the assignment mentioned I was to use form-level variables only when needed. I too quickly assumed that this referred to my arrays, which my instructor confirmed are to be form-level components.

Thanks for all the help