refresh page after event receiver item updated

I'm trying to refresh the page after the event itemupdated is fired. I've tried at the end of itemupdated without success

 properties.Status = SPEventReceiverStatus.CancelWithRedirectUrl; properties.RedirectUrl = "http://www.google.be/"; 

I tried too this but no result

SPUtility.Redirect("http://www.google.be", SPRedirectFlags.Trusted, HttpContext.Current); 

And finally in itemupdating, I've tried

HttpContext context = HttpContext.Current; context.Response.Redirect("http://www.google.be"); 

I've tried the proposed solution but still doesn't work

I've added the synchronous in Element.xml

<Synchronization>Synchronous</Synchronization> 

and this line in my itemupdated

SPUtility.Redirect("http://www.google.be", SPRedirectFlags.Trusted, HttpContext.Current); 

But nothing happened

I've no more ideas on how to solve this issue.