Find Control in WPF listBox

I have a WPF list box control in which two buttons are placed. I want to find these buttons from code behind,how can i find them and hide,shows them.
my code :
<ListBox Grid.Row="1" IsSynchronizedWithCurrentItem="True" Name="listAppointment" Background="#95BFE4" VerticalAlignment="Top" BorderBrush="{x:Null}" BorderThickness="0" ScrollViewer.HorizontalScrollBarVisibility="Hidden" Margin="1,0,0,5" ItemsSource="{Binding}" AlternationCount="0"> <ListBox.ItemContainerStyle > <Style TargetType="ListBoxItem"> <Setter Property="HorizontalContentAlignment" Value="Stretch" /> <Setter Property="VerticalContentAlignment" Value="Stretch" /> <Setter Property="MinHeight" Value="36" /> <Setter Property="Borde ...