title: Sharepoint SiteUserInfoList get all keys and values
body: <p>I need to get all key and value pairs from Sharepoint 2013 <code>SiteUserInfoList</code> list.</p>
  
  <p>I currently have following code:</p>
  
  <pre><code>            SPWeb web = new SPSite("http://sp2013:2013/_catalogs/users/detail.aspx").OpenWeb();
              SPList item = web.SiteUserInfoList;
  
              foreach (SPListItem f in item.Items)
              {
                  foreach (var it in f.Fields)
                  {
                      // Here I would like to print out key value pairs
                      Console.WriteLine("Tile: {0}:{1}", it, it.ToString());
                  }
              }
              Console.ReadLine();
  </code></pre>