C# MVC Razor：模拟带验证的多页表单

Question

之后编辑：

我应该更好地表达我最初的问题：在下面的示例中，我使用了两种形式：

using (Html.BeginForm....

在控制器中，我将如何只验证一种形式，而不是整个模型？这甚至可能吗？或者，我是否试图以不符合预期的方式使用 MVC？多年来，我一直是 ASP.NET 表单专家。还在学习 MVC。

//结束编辑

我有一个表单视图，需要以两部分（或两页）表单的形式呈现。这两部分都有一些必填字段。我可以模拟多页表单，但我遇到的问题是验证。对于每篇文章，它都会验证整个视图上的所有字段。如何让它仅验证当前可见的字段？

这是我现在拥有的（简化的）：

型号：

public Boolean Page1Complete { get; set; }
public Boolean Page2Complete { get; set; }

[Required(ErrorMessageResourceType = typeof(Resources.CustomerSatisfactionSurvey), ErrorMessageResourceName = "Page1Question1Required")]
public int? LikelyToReturn { get; set; }

[Required(ErrorMessageResourceType = typeof(Resources.CustomerSatisfactionSurvey), ErrorMessageResourceName = "Page2Question1Required")]
public int? RecomendToFriend { get; set; }

查看：

if (!Model.Page1Complete)
{
    using (Html.BeginForm("PatientSatisfactionSurveyPage1", "Forms", FormMethod.Post, new { id = "patient-satisfaction-survey-page-1", @class = "full-form" }))
    {
        @for (var a = 0; a < 11; a++)
        {
           @a - @Html.RadioButtonFor(model => Model.LikelyToReturn, @a)
        }
        <input type="submit" id="page1-submit" name="page1-submit" value="Continue" class="btn green2">
   }
}
else
// Page1 was submitted successfully. Display Page 2
{
    using (Html.BeginForm("PatientSatisfactionSurveyPage2", "Forms", FormMethod.Post, new { id = "patient-satisfaction-survey-page-2", @class = "full-form" }))
    {
        @for (var a = 0; a < 11; a++)
        {
           @a - @Html.RadioButtonFor(model => Model.RecomendToFriend, @a)
        }
        <input type="submit" id="page2-submit" name="page2-submit" value="Complete" class="btn green2">
    }
}

控制器：

[HttpPost]
public ActionResult PatientSatisfactionSurvey([Bind]PatientSatisfactionSurveyPage pss)
    {
        //Process and validate the first page
        if (Request.Form["page1-submit"] != null)
        {
            if (ModelState.IsValid)
            {
                pss.Page1Complete = true;
                // Page 1 Logic...
            }
        }

        //Process and validate the first page
        if (Request.Form["page2-submit"] != null)
        {
            if (ModelState.IsValid)
            {
                pss.Page2Complete = true;
                // Page 2 Logic...
            }
        }
    }

Answer 1

有很多方法可以做到：

我试着做最简单的

你的控制器：

  public class LikelyToReturnModel
  {
     [Required]
     public int LikelyToReturn { get; set; }
  }

  public class RecomendToFriendModel
  {
     public int LikelyToReturn { get; set; }

     [Required]
     public int RecomendToFriend { get; set; }
  }

  public class PatientSatisfactionController : Controller
  {
     //
     // GET: /PatientSatisfaction/
     public ActionResult LikelyToReturn()
     {
        return View(new LikelyToReturnModel());
     }

     [HttpPost]
     [ValidateAntiForgeryToken()]
     public ActionResult LikelyToReturn(LikelyToReturnModel model)
     {
        //validation example
        if (model.LikelyToReturn == 0)
        {
           ModelState.AddModelError("", "Can't be zero!!!");
        }
        if (ModelState.IsValid)
        {
           return RedirectToAction("RecomendToFriend", new { LikelyToReturn = model.LikelyToReturn });
        }
        return View(model);
     }

     public ActionResult RecomendToFriend(int LikelyToReturn)
     {
        return View(new RecomendToFriendModel { LikelyToReturn = LikelyToReturn });
     }

     [HttpPost]
     [ValidateAntiForgeryToken()]
     public ActionResult RecomendToFriend(RecomendToFriendModel model)
     {
        if (ModelState.IsValid)
        {
           //do something
        }
        return View(model);
     }

  }

您对 LikelyToReturn 的看法：

  @model MVCApp.Controllers.LikelyToReturnModel
  <h2>LikelyToReturn</h2>
  @using (Html.BeginForm(null, null, FormMethod.Post, new { id = "patient-satisfaction-survey-page-1", @class = "full-form" }))
  {
     @Html.ValidationSummary(true)
     @Html.AntiForgeryToken()

     for (var a = 0; a < 11; a++)
     {
        @Html.RadioButtonFor(model => Model.LikelyToReturn, a) @a <br />
     }
     <button type="submit">Continue</button>
  }

你的观点推荐给朋友：

  @model MVCApp.Controllers.RecomendToFriendModel
  <h2>RecomendToFriend</h2>
  @using (Html.BeginForm(null, null, FormMethod.Post, new { id = "patient-satisfaction-survey-page-2", @class = "full-form" }))
  {
     @Html.ValidationSummary(true)
     @Html.AntiForgeryToken()
     @Html.HiddenFor(_ => _.LikelyToReturn)

     for (var a = 0; a < 11; a++)
     {
        @Html.RadioButtonFor(model => Model.RecomendToFriend, a) @a <br />
     }
     <button type="submit">Complete</button>
  }