哪里是状态说明当.NET MVC返回HttpNotFound

Question

的这样的代码

if (id == null) 
{ 
    return HttpNotFound("Error Id"); 
} 
//// do something ... 
if (entity == null) 
{ 
    return HttpNotFound("Null Entity"); 
} 
//// do something ... 
if (somethingError()) 
{ 
    return HttpNotFound("Something Error"); 
} 

如果我要求它使用的浏览器，

我将有一个404页，我的面前。

但哪一个错误消息（状态说明）？

我无法找到它的页眉或原料。

Answer 1

可以使用HttpException

return new HttpException(404, "Some description"); 

///////////// ADDED

您可以使用下面

代码的Web.config

<customErrors mode="On" defaultRedirect="~/Error"> 
</customErrors> 

控制器：

public class ErrorController : Controller 
{ 
    public ViewResult Index(string message) 
    { 
    ViewBag.ErrorMessage = message; 

    return View("Error"); 
    } 
} 

查看

@{ 
    Layout = "_Layout.cshtml"; 
    ViewBag.Title = "Error"; 
    string errorMessage = (!string.IsNullOrEmpty(ViewBag.ErrorMessage))? ViewBag.ErrorMessage : " An unexpected error has occurred. Please contact the system administrator."; 
} 

<div class="row"> 
    <span>Error</span> 
</div> 
<div class="row"> 
    <div class="alert alert-error"> 
     @errorMessage 
    </div> 
</div> 

代码：

 var errorMessage = ""; 

     if (id == null) 
     { 
      errorMessage = "Error Id"; 
     } 
     //// do something ... 
     if (entity == null) 
     { 
      errorMessage = "Null Entity"; 
     } 
     //// do something ... 
     if (somethingError()) 
     { 
      errorMessage = "Something Error"; 
     } 

     if (!string.IsNullOrEmpty(errorMessage)) return RedirectToAction("Index", "Error", new { message = errorMessage });