如何从另一个类访问ListView的选定项？ 在WPF C＃中

Question

I have two views of WPF (Vista1.xaml and Vista2.xaml), and they are part of a MainWindow.xaml. In the Vista1.xaml i have a listview, where the user selects some items by clicking and the Vista2.xaml has a button. I want that when the user clicks on the button of Vista2.xaml, get the items that the user previously selected in the listview of Vista1.xaml.

I have class in the Vista1.xaml.cs ListViewItem_PreviewMouseLeftButtonDown method that captures the user selects the item in the listview. the code is as follows

private void ListViewItem_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
            var item = sender as ListViewItem;
            if (item != null && item.IsSelected)
            {
               ...
            }
}

I appreciate your help

Answer 1

Add a public property to you MainPage that contains the data you want to pass between Vista1 and Vista2 . Then, in your event handler of Vista1, set the property and on the button click of Vista2 read the property.