wpf get screen position of selected item in listview-CodePudding

In the mouseup event for a listview, how do I get the screen position of a selected item? I can get the screen position of the listview itself (.pointtoscreen) but can't find a way to determine the screen position of a selected item.

I've reviewed other SO articles but didn't find anything specific to items in the listview.

CodePudding user response：

You can handle the ListBox.SelectionChanged event (or Selector.Selected). Then get the container of the selected item to calculate its coordinates:

partial class MainWindow : Window
{
  private void ListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
  {
    var listBox = sender as ListBox;
    var selectedItemContainer = listBox.ItemContainerGenerator.ContainerFromItem(listBox.SelectedItem) as UIElement;
    var pointOnSelectedItem = new Point(); // top-left corner

    var pointOnScreen = selectedItemContainer.PointToScreen(pointOnSelectedItem);
    var pointRelativeToWindow = selectedItemContainer.TranslatePoint(pointOnSelectedItem, this);
  }
}