title: Escape & character in string
body: <p>I want to set value appconfig key,but value contains &amp; character.I tried double &amp;&amp; like this "8L&amp;&amp;L26X0s8@P" but dont working.Can you help me please?  </p>
  
  <pre><code> &lt;add key="SAP_PASS" value="8L&amp;L26X0s8@P"/&gt;
  </code></pre>