这是一个非常简单的例子,但它应该足以证明我的问题.我需要将模型传递给我的用户将更新的视图,但视图还需要一些其他数据来创建下拉列表或提供其他信息.
基于我下面的代码,我想避免使用ViewBag / ViewData,所以我是否以某种方式将QuestionList和PasswordLength(为多余的示例场景引入)组合到ChangeSecurityQuestionModel中或者创建一个新的viewmodel或其他一些对象？
[Authorize]
public ActionResult ChangeSecurityQuestion() {
var user = Membership.GetUser();
if (user != null) {
var model = new ChangeSecurityQuestionModel() {
PasswordQuestion = user.PasswordQuestion
};
ViewBag.QuestionList = new SelectList(membershipRepository.GetSecurityQuestionList(),"Question","Question");
ViewBag.PasswordLength = MembershipService.MinPasswordLength;
return View(model);
}
// user not found
return RedirectToAction("Index");
}
[Authorize]
[HttpPost]
public ActionResult ChangeSecurityQuestion(ChangeSecurityQuestionModel model) {
if (ModelState.IsValid) {
var user = Membership.GetUser();
if (user != null) {
if (user.ChangePasswordQuestionAndAnswer(model.Password,model.PasswordQuestion,model.PasswordAnswer)) {
return View("ChangeQuestionSuccess");
} else {
ModelState.AddModelError("","The password is incorrect.");
}
}
}
// If we got this far,something Failed,redisplay form
ViewBag.QuestionList = new SelectList(membershipRepository.GetSecurityQuestionList(),"Question");
ViewBag.PasswordLength = MembershipService.MinPasswordLength;
return View(model);
}
解决方法
为什么不将QuestionList和PasswordLength放在ChangeSecurityQuestionModel中
var model = new ChangeSecurityQuestionModel() {
PasswordQuestion = user.PasswordQuestion,QuestionList = new SelectList(membershipRepository.GetSecurityQuestionList(),"Question"),PasswordLength = MembershipService.MinPasswordLength;
};
