title: Accessing TFS Work Item Properties "Blocked" & "Root Cause" using TFS API
body: <p>Can anyone tell me how I can access the properties "Blocked" &amp; "Root cause" of a Work Item?</p>
  
  <p>I tried the following but it doesn't seem to be right:</p>
  
  <pre><code>// Code to connect to TFS
  
  WorkItem workItem = workItemStore.GetWorkItem(1234);
  
  string blocked = workItem.Fields["Blocked"].Value.ToString();
  string rootCause = workItem.Fields["Root Cause"].Value.ToString();    
  </code></pre>