title: Linq Query On IDictionaryEnumerator Possible?
body: <p>I need to clear items from cache that contain a specific string in the key. I have started with the following and thought I might be able to do a linq query</p>
  
  <pre><code>var enumerator = HttpContext.Current.Cache.GetEnumerator();
  </code></pre>
  
  <p>But I can't? I was hoping to do something like</p>
  
  <pre><code>var enumerator = HttpContext.Current.Cache.GetEnumerator().Key.Contains("subcat");
  </code></pre>
  
  <p>Any ideas on how I could achieve this?</p>