Redirect to Action by parameter mvc

Question

I want to redirect to an action in other Controller but it doesn t work here s my code in ProductManagerController    HttpPost  public ActionResult RedirectToImages int id        return RedirectToAction  Index   ProductImageManeger   new     id id           and this in my ProductImageManagerController    HttpGet  public ViewResult Index int id        return View  Index   db ProductImages Where rs  gt rs ProductId    id  ToList         It redirect to ProductImageManager Index without parameter very well no error  but with above code i get this       The parameters dictionary contains a null entry for   parameter  ID  of non-nullable type  System Int32  for method    System Web Mvc ViewResult Index Int32   in       Controllers ProductImageManagerController     An optional parameter must be a reference type  a nullable type  or be   declared as an optional parameter  Parameter name  parameters

User · Answer

This should work       HttpPost  public ActionResult RedirectToImages int id        return RedirectToAction  Index    ProductImageManeger   new    id   id         HttpGet  public ViewResult Index int id        return View  db ProductImages Where rs   gt  rs ProductId    id  ToList         Notice that you don t have to pass the name of view if you are returning the same view as implemented by the action   Your view should inherit the model as this    model  lt Your class name gt    You can then access your model in view as    Model  lt property name gt

User · Answer

This error is very non-descriptive but the key here is that  ID  is in uppercase  This indicates that the route has not been correctly set up  To let the application handle URLs with an id  you need to make sure that there s at least one route configured for it  You do this in the RouteConfig cs located in the App Start folder  The most common is to add the id as an optional parameter to the default route   public static void RegisterRoutes RouteCollection routes          adding the  id  and setting is as optional so that you do not need to use it for every action     routes MapRoute          name   Default           url    controller   action   id            defaults  new   controller    Home   action    Index   id   UrlParameter Optional              Now you should be able to redirect to your controller the way you have set it up    HttpPost  public ActionResult RedirectToImages int id        return RedirectToAction  Index   ProductImageManager   new   id            if the action is in the same controller  you can omit the controller        RedirectToAction  Index   new   id         In one or two occassions way back I ran into some issues by normal redirect and had to resort to doing it by passing a RouteValueDictionary  More information on RedirectToAction with parameter  return RedirectToAction  Index   new RouteValueDictionary       new   controller    ProductImageManager   action    Index   id   id           If you get a very similar error but in lowercase  id   this is usually because the route expects an id parameter that has not been provided  calling a route without the id  ProductImageManager Index   See this so question for more information

User · Answer

return RedirectToAction  ProductImageManager   Index   new     id id         Here is an invalid parameters order  should be an action first AND ensure your routing table is correct

User · Answer

Try this   return RedirectToAction  ActionEventName    Controller   new   ID   model ID  SiteID   model SiteID       Here i mention you are pass multiple values or model also   That s why here i mention that

[c#] Redirect to Action by parameter mvc

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