<html>
   <head></head>
   <body>
      <iframe id="casesFrame" width="99%" height="418" frameborder="0" src="../cases/main_init" name="casesFrame" style="">
         <html class=" ext-strict x-viewport">
            <head></head>
            <body id="ext-gen3" class=" ext-gecko ext-gecko3 x-border-layout-ct">
               <ul id="ext-gen37" class="x-tree-root-ct x-tree-arrows">
                  <li class="x-tree-node">
                     <a class="x-tree-node-anchor" tabindex="1" href="" hidefocus="on">
                        <span unselectable="on">New case</span>
                     </a>
                  </li>
               </ul>
            </body>
         </html>
      </iframe>
   </body>
</html>
I have the following structure in my page, but I get error while performing an event "Click" link "New Case" this is iframe.
I am using the code following in "Test Studio":
Browser casesFrame = Manager.ActiveBrowser.Frames.ById ("casesFrame");
HtmlAnchor NewCase = casesFrame.Find.ByExpression <HtmlAnchor> ("InnerText = ~ New case", "tagname = a");
Assert.IsNotNull (NewCase);
newCase.Click (); //Does not perform the event 
