title: How to cast a STRING to a GUID
body: <p>I need cast a <code>String</code> to a <code>Guid</code>.</p>
  
  <p>I am using this code but</p>
  
  <pre><code>string myUserIdContent = ((Label)row.FindControl("uxUserIdDisplayer")).Text;
  Guid myGuidUserId = new Guid(myUserIdContent); // PROBLEM HERE
  MembershipUser mySelectedUser = Membership.GetUser(myGuidUserId);
  </code></pre>
  
  <p>I receive this error</p>
  
  <blockquote>
    <p>Exception Details: System.FormatException: Unrecognized
    Guid format.</p>
  </blockquote>
  
  <p>What is the proper way to achieve the results?</p>