Global.asax的Application_Start中不能用Transfer执行指定页面吗?
private   void   Application_Start(object   sender,   EventArgs   e) 
 { 
             HttpContext   ctx   =   HttpContext.Current; 
             //ctx.Server.Execute( "Error.aspx "); 
             ctx.Server.Transfer( "Error.aspx "); 
 } 
 以前代码无论用Execute还是Transfer执行另外的一个aspx页面,都出现异常。   
 [NullReferenceException:   
未将对象引用设置到对象的实例。] 
          System.Web.HttpServerUtility.Execute(String   path,   TextWriter   writer,   Boolean   preserveForm)   +416   
 [HttpException   (0x80004005):   为   Error.aspx   执行子请求时出错。] 
          System.Web.HttpServerUtility.Execute(String   path,   TextWriter   writer,   Boolean   preserveForm)   +719 
          System.Web.HttpServerUtility.Transfer(String   path,   Boolean   preserveForm)   +53 
          System.Web.HttpServerUtility.Transfer(String   path)   +27   
 这是怎么回事呢?难道在Application_Start不能用Transfer吗?有办法解决吗?谢谢!
------解决方案--------------------      HttpContext ctx = HttpContext.Current; 
     //ctx.Server.Execute( "Error.aspx "); 
     ctx.Response.Redirect( "http://dotnet.aspx.cc ");