c# pass listview items from form to listview in another form

I have form1 and form 2 .. and listview1 on form1 , listview2 on form2 when listview1 in form1 and listview2 in form2 and both listview contain : itemcode - itemcount . and button1 in form2

on form2 if user click button1 values in listview2 on form2 be populated in listview1 on form1 and form2 close how to do such action in code thanks