asp.net - Parameters in RedirectToAction don't passed down -

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i'm trying pass down parameters action. there several parameters need pass down. when debugging, found simple types of parameters got values, whereas own class parameters null.

return redirecttoaction("histories", new {myuser = user, sortorder = "name_desc" });

and here action method:

   public actionresult histories(applicationuser myuser, string sortorder, int? page)

i did research , found , seems objects can serialized can passed down.

so added annotation [serializable] on applicationuser class, , doesn't work.

so i'm wondering what's best practice pass down objects？

i know can put myuser session["currentuser"], don't old fashion.

thank you.

you have not passed int? page value, should this

return redirecttoaction("histories", new {myuser = user,             sortorder = "name_desc",             page =1 });

or need use default parameter value this

public actionresult histories(applicationuser myuser,      string sortorder,       int? page = 1)

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