Listview with two different context menu

Question

I have a listview control in WPF,and that listview contains so many items,here I want to use two types of context menu(contextmenu 1,contextmenu 2),what i want to do is when i select one item in the listview,it has to show context menu 1 or when i select more than one item, it has to show context menu 2...this we have done in xaml(data binding)...