title: How do I create a plus or minus button in my Windows Phone app using XAML?
body: <p>I want to include a plus or minus button in my Windows Phone app. How can I change the content of the button to plus or minus?</p>
  
  <pre><code>&lt;Button x:Name="buttonPlusOrMinus" 
              Content="+/-"
              HorizontalAlignment="Left" 
              Margin="180,217,0,0" 
              Grid.Row="2" 
              VerticalAlignment="Top"/&gt;
  </code></pre>