Passing a Data table from one form to another form

I have a form that has a listbox with the months of the year.  The user will select several months from the listbox and I will build a data table with the months selected.
I then call another form that will process the months selected and display in a listview.  I am relatively new in Web appl but it seams like I can not display a listview in the same form that I colect the months.  Is my approach wrong, if not, can I pass a table to another forms and process the table entries?  I need sample code if you have.