How to keep your MVC controllers DRY for Edit->Save->ValidateFail

How to keep your MVC controllers DRY for Edit->Save->ValidateFail

I've got a Manage User event that takes an an optional userID and displays
a user edit screen. There is a manageUserViewModel to go with this screen.
My Manage page has some dependencies - eg, PageTitle, what method to
submit to, etc.
If I validate-fail, I need to show the manage screen again, but this time,
using the view-model that was passed into the same method.
Supplying these dependencies in the fail scenario isn't very DRY.
How do I step repeating the dependencies? I tried putting them into a
separate method, but that does not feel right.
public ActionResult Manage(Guid? UserID)
{
User user = this._UserLogic.GetUser(UserID);
ViewBag.Title = "User List";
ViewBag.OnSubmit = "Save";
ManageUserViewModel uvm = Mapper.Map<User,
ManageUserViewModel>(user);
return View("Manage", uvm);
}
[AcceptVerbs("POST")]
public ActionResult Save(ManageUserViewModel uvm)
{
User user = this._UserLogic.GetUser(uvm.UserID);
if (!ModelState.IsValid)
// This is not very DRY!!!
ViewBag.Title = "Manage User";
ViewBag.OnSubmit = "Save";
return View("Manage", uvm);
}
Mapper.Map<ManageUserViewModel, User>(uvm, user );
this._UserLogic.SaveUser(user);
return RedirectToAction("Manage", new { UserID = user.ID });
}