Custom error handling with .net MVC 3

MyController.cs

public class MyController : Controller
{
  [HandleError(View ="MyCustomError",ExceptionType = typeof(MyException))]
  public ActionResult MyAction(string SaleType)
  {
    //Do stuff here that may throw an exception
    
    // The following line will demonstrate what happens when an exception is thrown
    throw new MyException("bang !");    
  }
}

MyCustomError.cshtml

@model HandleErrorInfo
<h2>Custom Error</h2>
<p>We apologise for the inconvenience. You are seeing this page because an error occurred while processing your request</p>
<p>We have recorded this error and the team periodically review any errors in an effort to improve our service. </p>
<p>We really value your help and feedback in resolving these issues. Nothing makes us happier than producing high quality and reliable software</p>
<hr/>
<p>The stuff below is technical information to help the support team find out what went wrong. If you are not in the support team you can safely ignore this.</p>
<p>
    <b>Controller</b>: @Model.ControllerName <br>
    <b>Action</b>: @Model.ActionName <br>
    <b>Exception</b>: @Model.Exception
</p>

web.config

<?xml version="1.0"?>
<configuration>
  <system.web>
    <customErrors mode="On"/>
  </system.web>
</configuration>