这是一个非常简单的例子,但足以说明我的问题。我需要向我的 View 传递一个用户将更新的模型,但该 View 还需要一些其他数据来创建下拉列表或提供其他信息。
根据我下面的代码,我想避免使用 ViewBag
/ViewData
,所以我以某种方式组合 QuestionList
和 PasswordLength
(在多余的示例场景中加入)到 ChangeSecurityQuestionModel
或创建新的 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", "Question");
ViewBag.PasswordLength = MembershipService.MinPasswordLength;
return View(model);
}
最佳答案
为什么不将 QuestionList 和 PasswordLength 放入您的 ChangeSecurityQuestionModel
var model = new ChangeSecurityQuestionModel() {
PasswordQuestion = user.PasswordQuestion,
QuestionList = new SelectList(membershipRepository.GetSecurityQuestionList(), "Question", "Question"),
PasswordLength = MembershipService.MinPasswordLength;
};
关于c# - 如何避免 ViewBag(或 ViewData)以支持模型?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/5193078/