c# - Adding massive in new form from existing form -

i have form1 in c# , added project new form - form2 (add/new item...).

private void button2_click(object sender, eventargs e) {     form2 form2 = new form2();     form2.show(); } 

how can use massive mass_1 in form2, created inform1?

if not using mvc, can pass in mass_1 in form2() constructor, or set property of form2.

better use model-view-controller (mvc) architecture. 1 example how implement mvc winforms:

http://www.codeproject.com/articles/383153/the-model-view-controller-mvc-pattern-with-csharp