title: InnerXML Replace not working with XMLDOCUMENT
body: <p>I have an XML file with :</p>
  <pre><code>&lt;IMG0&gt;&lt;/IMG0&gt;
  &lt;IMG1&gt;&lt;/IMG1&gt;
  &lt;IMG2&gt;&lt;/IMG2&gt;
  </code></pre>
  <p>It represents up to 10 images.</p>
  <p>I try to delete the number for having :</p>
  <pre><code>&lt;IMG&gt;&lt;/IMG&gt;
  &lt;IMG&gt;&lt;/IMG&gt;
  &lt;IMG&gt;&lt;/IMG&gt;
  </code></pre>
  <p>I make :</p>
  <pre><code>for (int l = 0; l &lt;= 10; l++)
  {
        doc.InnerXml.Replace(&quot;IMG&quot; + l, &quot;IMG&quot;);
  }
  </code></pre>
  <p>&quot;doc&quot; is an XMLDocument.</p>
  <p>But the node doesn't change.</p>
  <p>What can I do ?</p>