How to correctly set up a 'ContextMenu' in a ListView for Windows Phone 8.1?
Once your click event is raised, you can get the DataContext of the FrameworkElement.
private void EditButton_Click(object sender, RoutedEventArgs e){ var datacontext = (e.OriginalSource as FrameworkElement).DataContext; //this datacontext is probably some object of some type T (whatever is in your Items collections you haven't specified in your question)}