title: How to reach my controller from code-behind
body: <p>I have this <code>Circle ProgressBar</code> that responds to my <code>Slider</code> value changed:</p>
  
  <pre><code>    &lt;StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="530,303,114,303"&gt;
          &lt;Grid HorizontalAlignment="Center" VerticalAlignment="Center" Height="153" Width="155"&gt;
              &lt;DesignInControl:CircularProgressBar HorizontalAlignment="Center" VerticalAlignment="Center"
               SegmentColor="#FF878889" StrokeThickness="8" Percentage="100" /&gt;
              &lt;DesignInControl:CircularProgressBar Name="circleVale" HorizontalAlignment="Center" VerticalAlignment="Center"
               Percentage="{Binding Value, ElementName=slider}" SegmentColor="#026873" StrokeThickness="8" /&gt;
          &lt;/Grid&gt;
      &lt;/StackPanel&gt;
      &lt;Slider x:Name="slider" Maximum="100" Value="0" Width="200" Margin="597,185,227,495" /&gt;
      &lt;Label Name="lblCircleProgress" Content="{Binding Value, ElementName=slider}" Margin="698,344,284,343" Foreground="White"
  </code></pre>
  
  <p>How can I change this value in the code-behind?
  I tried to give this control a <code>name</code> property (Name="circleVale") but for some reason I cannot reach it in the code-behind.</p>