.NET MVC : Calling RedirectToAction passing a model?

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I don’t believe ModelBinding exists when using RedirectToAction. Your best options, however, is to use the TempData collection to store the object, and retrieve it in the following action. 

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Add(...)
{
  //...
  Kindergarten k = ...
  TempData["KG"] = k;
  return RedirectToAction("List");
}

In your List Action

public ActionResult List()
{

   Kindergarten k = (Kindergarten)TempData["KG"];
   // I assume you need to do some stuff here with the object, 
   // otherwise this action would be a waste as you can do this in the Add Action
  return View(k);
}

Note: TempData collection only holds object for a single subsequent redirect. Once you make any redirect from Add, TempData[“KG”] will be null (unless you repopulate it)

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