On / off button when selecting a list

I have a ListBox

<ListBox Background="WhiteSmoke"
         Name="LstComponents"
         ItemsSource="{Binding}">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal">
                <TextBlock Text="{Binding ComponentID}" />
                <TextBlock Text=" - " />
                <TextBlock Text="{Binding ComponentName}" />
            </StackPanel>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

      

        
        
        
      

    

and a few buttons

<Button Content="Add New Components"
              Name="BtnAdd"
              Margin="5"
              Click="BtnAdd_Click" />
<Button Content="Update Components"
              Name="BtnUpdate"
              Grid.Column="1"
              Margin="5"
              Click="BtnUpdate_Click" />
<Button Content="Delete Components"
              Grid.Column="2"
              Name="BtnDelete"
              Margin="5"
              Click="BtnDelete_Click" />

      

        
        
        
      

    

Now I wanted the Update and Delete button to be disabled when loaded, whereas it should enable if a list item in the ListBox is selected.

I don't want to write code for it. Suggest Plz? How can I accomplish this task in XAML