Passing a parameter from a class to a form

I am writing an outlook addin. I wrote a class in which I call a form from it. I fill an array with values which i need in the form. How do I either pass the array from the class to the form or where do I declare the array as public??

I call the form from the class like this: "frmSavetoweb.show"

any help with this would be greatly appreciated.
Thanks.