c# - 多部分页面回发上的模型为空

Question

抱歉标题不好。

我正在尝试制作一个恢复密码页面。我打算将这一切作为一个具有多个状态的单个页面来完成，具体取决于模型信息（也许这不是一个好方法）。

恢复有 4 个步骤

验证用户输入的电子邮件
验证用户输入的第一个安全问题的答案
验证用户输入的第二个安全问题的答案

显示消息，说明已发送一封电子邮件，其中包含重置密码的链接。

[AllowAnonymous]
public ActionResult RecoverPassword()
{
    return View(new RecoverPassword());
}
[AllowAnonymous]
[HttpPost]
public ActionResult RecoverPassword(RecoverPassword model)
{
    var user = new Identity("", "");
    ASResponse<string> asr;
    switch (model.View)
    {
        case "One":
            try
            {
                asr = Services.ValidateSecurityQuestionOne(user.Token, model.Email, model.Answer);
                model.View = "Two";
                model.Question = "Your Other Favorite Color"; //asr.Payload;
                model.Answer = string.Empty;
            }
            catch (Exception)
            {
                ModelState.AddModelError("Question", "Incorrect Answer");
            }
            break;
        case "Two":
            try
            {
                asr = Services.ValidateSecurityQuestionTwo(user.Token, model.Email, model.Answer);
                model.View = "Email";
                model.Question = string.Empty;
            }
            catch (Exception)
            {
                ModelState.AddModelError("Question", "Incorrect Answer");
            }

            break;
        case "Email": break;
        default:
            if (!string.IsNullOrEmpty(model.Email))
            {
                try
                {
                    asr = Services.ValidateEmail(user.Token, model.Email);
                    model.View = "One";
                    model.Question = asr.Payload;
                }
                catch (Exception)
                {
                    ModelState.AddModelError("Email", "Invalid Email");
                }

            }
            break;
    }

    return View(model);
}


<div>
<div>Retrieve your password</div>
@{

using (@Html.BeginForm())
{

@Html.HiddenFor(m => m.View)

switch (Model.View)
{
    case "One":
    case "Two":
        @Html.HiddenFor(m => m.Email)
        <h3>@Model.Question</h3>
        @Html.TextBoxFor(m => m.Answer)
        <br/>
        <input type="submit" value="Next" />
        break;
    case "Email":
        <h3>Your email is on its way!</h3>
        break;
    default:

        <h3>Please enter your Account Email Address</h3>
        @Html.TextBoxFor(m => m.Email)
        <br/>
        <input type="submit" value="Next" />
        break;
}
}    

}

</div>

使用上述内容，我输入电子邮件，我收到第一个问题，但是当我提交该答案时，model.View 为空，因此它返回到电子邮件问题。

创建这样的设置的适当方法是什么？或者我怎样才能让我的模型始终拥有视图和电子邮件？

score 0 · Accepted Answer

尝试在视图中删除 @Html.HiddenFor(m => m.View) 并将其移动到每个切换条件中，如下所示：

switch (Model.View)
{
    case "One":
        @Html.HiddenFor(m => m.Email)
        <h3>@Model.Question</h3>
        @Html.TextBoxFor(m => m.Answer)
        @Html.HiddenFor(m => m.View)
        <br/>
        <input type="submit" value="Next" />
        break;
    case "Two":
        @Html.HiddenFor(m => m.Email)
        <h3>@Model.Question</h3>
        @Html.TextBoxFor(m => m.Answer)
        @Html.HiddenFor(m => m.View)
        <br/>
        <input type="submit" value="Next" />
        break;
    case "Email":
        <h3>Your email is on its way!</h3>
        break;
    default:

        <h3>Please enter your Account Email Address</h3>
        @Html.TextBoxFor(m => m.Email)
        <br/>
        <input type="submit" value="Next" />
        break;
}

c# - 多部分页面回发上的模型为空

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