asp.net-mvc – 使用RedirectToAction时,routeValue丢失引用属性

所以如果我在第一个控制器中这样做：

public class AController:Controller
    {
            public ActionResult ActionOne()
            {
                 MyObject myObj = new MyObject()
                 myObj.Name="Jeff Atwood";
                 myObj.Age =60;
                 myObj.Address = new Address(40,"Street");

                 return RedirectToAction("ActionTwo","BController",myObj );

             }
    }

在第二个控制器中,myObj会出来,但地址将为空.

public class BController:Controller
        {
                public ActionResult ActionOne(MyObject obj)
                {
                     //obj.Address is null?

                 }
        }

这是预期的吗？任何方式呢？

解决方法

您可以使用 TempData来存储两个请求之间可用的对象.在内部,默认实现使用Session.

public class AController:Controller
{
    public ActionResult ActionOne()
    {
        MyObject myObj = new MyObject()
        myObj.Name = "Jeff Atwood";
        myObj.Age = 60;
        myObj.Address = new Address(40,"Street");
        TempData["myObj"] = myObj;
        return RedirectToAction("ActionTwo","BController");

    }
}

public class BController:Controller
{
    public ActionResult ActionTwo()
    {
        MyObject myObj = TempData["myObj"] as MyObject;
        // test if myObj is defined. If ActionTwo is invoked directly it Could be null
    }
}