奇怪的重定向行爲

Question

我想知道如何保持一個在ASP.NET MVC-4UrlRedirect：

例如，我有這樣的：

/admin/category/add/81/142 

但我使用後：

return RedirectToAction("Add", "Category", new RouteValueDictionary 
{ 
    {"id", siteid.Value}, 
    {"cid", pid.HasValue ? pid.Value : cid.Value } 
}); 

我得到這個：

/admin/category/add?id=81&cid=142 

但我想原來的/admin/category/add/81/142

這裏是我的路由配置：

public override void RegisterArea(AreaRegistrationContext context) 
    { 
     context.MapRouteLowercase(
      "Admin_LogOn", 
      "Admin/{controller}/{action}/", 
      defaults: new { controller = "Account", action = "LogOn" }, 
      constraints: null 
     ); 

     context.MapRouteLowercase(
      "Admin_Category_List_Add", 
      "Admin/{controller}/{action}/{id}/{cid}/{pid}", 
      defaults: 
       new 
       { 
        controller = "Category", 
        action = "Create", 
        id = UrlParameter.Optional, 
        cid = UrlParameter.Optional, 
        pid = UrlParameter.Optional 
       }, 
      constraints: null 
     ); 


     context.MapRouteLowercase(
      "Admin_TwoParameters", 
      "Admin/{controller}/{action}/{id}/{cid}", 
      defaults: new { controller = "Manager", action = "Index", id = UrlParameter.Optional, cid = UrlParameter.Optional }, 
      constraints: null 
    ); 


     context.MapRouteLowercase(
      "Admin_default", 
      "Admin/{controller}/{action}/{id}", 
      defaults: new { controller = "Manager", action = "Index", id = UrlParameter.Optional }, 
      constraints: null 
     ); 
    } 

Answer 1

But i want the original one /admin/category/add/81/142 

要保留格式，你可以這樣做：

return Redirect(Url.Action("Add", "Category") + "/" + siteid.Value + "/" + (pid.HasValue ? pid.Value : cid.Value)); 

，或者如果你喜歡Concat的字符串（我更喜歡第一個）：

return Redirect(new[] { Url.Action("Add", "Category"), "/", siteid.Value, "/", (pid.HasValue ? pid.Value : cid.Value).ToString()});