How to access a ListBoxItem from a button created by the DataTemplate of this same ListBoxItem

Question

Problem

Given this piece of code, I want to have access to the properties (more specifically, its index) of the ListBoxItem that contains a Button when I press it. I've figured that I need to obtain the Button's parent (which is an StackPanel) and then its TemplatedParent and then walk up the Visual Tree, but I don't know two very important things: how to do that efficiently to solve my problem, neither whether that really solves my problem.

XAML

<ListBox x:Name="myListBox"  Foreground="Black" HorizontalAlignment="Left" Height="101"     Margin="237,312,0,0" VerticalAlignment="Top" Width="420">
    <ListBox.ItemTemplate>
        <!--src is the alias I gave to the xmlns that gives me access to the    assembly on which I'm working-->
        <DataTemplate DataType="{x:Type src:Items}">
             <DataTemplate.Resources>
                  <Style TargetType="Label">
                      <Setter Property="Foreground" Value="Black"/>
                      <Setter Property="FontFamily" Value="Tahoma"/>
                  </Style>
              </DataTemplate.Resources>
              <StackPanel Orientation="Horizontal">
              <!--Property1 to Property3 are defined in the Items type-->
                  <Label Content="{Binding Path=Property1}" Width="30"  MaxWidth="30"/>
                  <Label Content="{Binding Path=Property2}" Width="100" MaxWidth="100"/>
                  <Label Content="{Binding Path=Property3}" Width="250" MaxWidth="250"/>
                  <Button Content="X" Width="30" MaxWidth="30" Click="RemoveItemFromList"/>
              </StackPanel>
        </DataTemplate>
     </ListBox.ItemTemplate>
</ListBox>

C Sharp

The piece of my code that works fine

//Somewhere in my code
ObservableCollection<Items> myStuff = createListOfItems();
myListBox.DataContext = myStuff;
myListBox.setBinding(ItemsControl.ItemsSourceProperty, new Binding());

What I thought could be the answer (not working)

private void RemoveItemFromList(object sender, RoutedEventArgs e)
{
    int index = (((sender as Button).Parent as StackPanel).TemplatedParent as ListBoxItem).IsSelected = true;
    myStuff.RemoveAt(myListBox.SelectedIndex); 
}

Answer 1

ItemsControl has a utility method you can use called ContainerFromElement. You pass in an element from the visual subtree of an item container, and it gives you the container, e.g., the ListBoxItem:

var container = ItemsControl.ContainerFromElement(myListBox, sender as UIElement)
                as ListBoxItem;