title: Why I can't perform mouse move using Selenium WebDriver for C# and PageFactory in initialization
body: <p>I have an link in HTML and I use Page Object pattern to write scripts with Selenium. But I can't perform MouseMove action when object is initialized with pageFactory.
  So, I have such class:</p>
  
  <pre><code>class BingPage
  {
  private readonly IWebDriver driver;
  public static readonly String BASE_URL = "http://bing.com/";
  [FindsBy(How = How.XPath, Using = ".//*[@id='scpt2']/a[text()='Shopping']")]
  private IWebElement ShoopingLink;
  
  public BingPage(IWebDriver driver)
  {
      this.driver = driver;
      //Page Factory will use Driver to init searchButton and queryEdit objects
      PageFactory.InitElements(driver, this);
  }
  
  public void HoverShoppingLink()
  {
      Actions builder = new Actions(driver);
  
      IWebElement elem = driver.FindElement(By.XPath(".//*[@id='scpt2']/a[text()='Shopping']"));
      builder.MoveToElement(elem).Build().Perform();//This will work
  
      builder.MoveToElement(ShoopingLink).Build().Perform(); //This will fail
  }
  }
  </code></pre>
  
  <p>Line marked with comment "This will fail" will throw an exception "Must provide a location for a move action. Parameter name: actionTarget"</p>
  
  <p>But when I manually lookup element - it works.
  Could someone tell me why?</p>
  
  <p>It is selenium 2.0 for .Net, .Net 4.0 with IE driver.</p>