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Editorial Team
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Asked: 2026-05-29T18:30:10+00:00

I have a controller action like this: public ActionResult Index(string url) { var pageTitle

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I have a controller action like this:

public ActionResult Index(string url)
{
     var pageTitle = url.Split('/')[0];
     var page = Services.PageService.GetPage(pageTitle);

     if (page == null)
     {
         throw new HttpException((Int32) HttpStatusCode.NotFound, "NotFound");
     }

      return View(page);
 }

Everytime I am debugging my site, when the HttpException is thrown I get a prompt from Visual Studio notifying me that the exception was unhandled by user code.

I guess I just want somebody to clarify that what I am doing is correct, and that this notification can be dismissed without worry. The event still bubbles up to the Application_Error method in my Global.asax file where I am actually handling HttpException’s, so as far as I can tell the only problem is the inconvenience of VS telling me every time this exception is thrown.

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1 Answer

  1. Editorial Team

    I guess I just want somebody to clarify that what I am doing is
    correct, and that this notification can be dismissed without worry.

    Yes, what you are seeing is called a first chance exception. VS debugger notifies you of all exceptions occurring in your code. If you have a proper handler for this exception you should be fine.

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