title: Convert Entity Collection to Ilist where Entity Collection does not implement IEnumerable
body: <p>I have a <code>Entity</code> Collection Like this:
  <strong>EntityCollection</strong> users;</p>
  
  <p>I want to convert it to a <code>Ilist</code> like this:</p>
  
  <pre><code>systemUsers = new List&lt;CrmSdkTypeProxy.SystemUser&gt;(); 
  </code></pre>
  
  <p>where <code>CrmSdkTypeProxy.SystemUser</code> is a type of <code>Entity</code>. However, my <code>Entity</code> Collection is derived from a <code>dll</code> of <code>Microsoft.Xrm.Sdk</code> which does not implement <code>IEnumerable</code>. I am using <code>mscrm</code> 2011 specific <code>dlls</code>.</p>
  
  <p>Any idea on how I create a list like this: <code>.List&lt;CrmSdkTypeProxy.SystemUser&gt;</code>?</p>