title: XDT Config Transforms - ReplaceAll?
body: <p>I've got a custom section in my web.config file similar to this structure:</p>
  
  <pre><code>&lt;Messages&gt;
    &lt;Message id="1'&gt;
       &lt;Property Name="foo" value="bar" /&gt;
    &lt;/Message&gt;
    &lt;Message id="2'&gt;
       &lt;Property Name="foo" value="bar2" /&gt;
    &lt;/Message&gt;
  &lt;/Messages&gt;
  </code></pre>
  
  <p>I want to apply a custom transformation on this such that I can change the value of ALL instances of the Property element with Name="foo" - but I cant seem to get it to work.</p>
  
  <p>I've tried:</p>
  
  <pre><code>&lt;Messages&gt;
    &lt;Message&gt;
       &lt;Property Name="foo" value="updated" xdt:Locator=Match(Name) xdt:Transform="Replace" /&gt;
    &lt;/Message&gt;
  &lt;/Mesasges&gt;
  </code></pre>
  
  <p>I can remove all the elements by replacing the Transform=Replace with a Transform=RemoveAll - any ideas how I can achieve something similar to replace all the values?</p>