2016-12-09 46 views
0

我很确定我的大脑是朋友,这是我明天早上要笑的东西,但不幸的是我卡在这一部分,并寻求帮助。无法将价值传递给控制器​​从视图通过viewmodel

我有一个视图模型:

public class HousingDetailsViewModel : AppViewModel 
{ 
    DataContext db = new DataContext(); 

    public List<string> units { get; set; } 
    public List<AvailableHousing> availableHousings { get; set; } 
    public Person person { get; set; } 
    public OccupiedHousing currentHousing { get; set; } 
    public OccupiedHousing newHousing; 

    public HousingDetailsViewModel(int? id) 
    { 
      units = db.AvailableHousings.OrderBy(ah => ah.Unit).Select(h => h.Unit).Distinct().ToList(); 
      availableHousings = db.AvailableHousings.Where(h => h.Available == true).OrderBy(h => h.Bed) 
                        .OrderBy(h => h.Room).ToList(); 
      currentHousing = db.OccupiedHousing.Include(o => o.AvailableHousing) 
               .Include(o => o.Person).Where(o => o.PersonID == id && o.CurrentHousing == true).FirstOrDefault(); 
      person = db.Persons.Find(id); 
      newHousing = new OccupiedHousing(); 
    } 
} 

这种观点我的控制器方法:

public ActionResult Details(int? id) 
{ 
    return View(new HousingDetailsViewModel(id)); 
} 

[HttpPost] 
public ActionResult Move(OccupiedHousing newHousing, int? personID) 
{ 
    newHousing.PersonID = personID; 
    newHousing.DateArrived = DateTime.Now; 
    newHousing.CurrentHousing = true; 
    newHousing.AvailableHousingID = housingID; 
    db.OccupiedHousings.Add(newHousing); 
    db.SaveChanges(); 


    return RedirectToAction("Index", new HousingViewModel()); 
} 

而且我的表单工作正常,所有除1我的领域,这就是该AvailableHousingID。我试着设置一个隐藏的值。我在设置隐藏字段的值处放置了一个断点,并且我观察它发生了变化,但是它没有将其传递给控制器​​。所以我将它改为表单提交,并尝试将其作为路由值来捕获,但这也不起作用。我无所适从,任何人都可以看到我要去哪里错了?

编辑:添加视图

@model AppName.ViewModels.HousingDetailsViewModel 
@{ 
    ViewBag.Title = "Housing Details"; 
} 

@Html.BeginForm("Move", "Housing", new { personID = @Model.person.ID }, FormMethod.Post, new { }) 
<script> 
    function setID(id) { 
     $('#HiddenHousingID').val(id); 
     $('#HiddenSubmit').click(); 
    } 
</script> 
<h2>Housing Details</h2> 

<div class="row"> 
    <div class="col-xs-12 container"> 
     <div class="col-xs-5"> 
      <img src="//placehold.it/150x200/77CCDD/66BBCC" class="img-responsive" /> 
     </div> 
     <div class="col-xs-7"> 
      <h4>@Model.person.ComboName</h4> 
      <h4>@Model.currentHousing.AvailableHousing.Unit - @Model.currentHousing.AvailableHousing.Room - @Model.currentHousing.AvailableHousing.Bed</h4> 
      <h4>@Model.person.DateOfBirth.Value.ToShortDateString()</h4> 
      @Html.HiddenFor(m => m.newHousing.AvailableHousingID, new { id = "HiddenHousingID", name = "newHousing.AvailableHousingID")} 
     </div> 
    </div> 
</div> 
<div class="row"> 
    @foreach (var unit in Model.units) 
    { 
     <div class="col-xs-6"> 
      <div class="panel panel-primary"> 
       <div class="panel-heading"> 
        <span class="panel-title"> 
         @unit 
        </span> 
       </div> 
       <div class="panel-body"> 
        <table id="MoveHousingTable" class="table table table-condensed table-striped"> 
         <thead> 
          <tr> 
           <th> 
            Available Housing 
           </th> 
           <th></th> 
          </tr> 
         </thead> 
         <tbody> 
          @foreach (var housing in Model.availableHousings.Where(h => h.Unit == unit)) 
          { 
           <tr> 
            <td> 
             @housing.Room - 
             @housing.Bed 
            </td> 
            <td> 
             <input type="button" value="Select" name="select" onclick="setID(@housing.ID)" /> 
            </td> 
           </tr> 
          } 
         </tbody> 
        </table> 
       </div> 
      </div> 
     </div> 
    } 
</div> 
<input type="submit" class="hidden" id="HiddenSubmit"> 
} 
+0

可你也同意这样的观点 – Usman

+5

(1)查看模型永远不应该包含数据库访问代码(2)查看模型在编辑时不应包含数据模型。 (3)你将'HousingDetailsViewModel'传递给视图,这样你的post方法需要是'public ActionResult Move(HousingDetailsViewModel model)'(4)你看起来没有无参数的构造函数,所以DefaultModelBinder会抛出一个异常你修复点3 –

+0

@Usman,我已更新显示视图。我展示了BeginForm的用法,我不使用Move方法的housingID参数。我想我应该把它拿出来。 – Kramb

回答

0

对于路线:

@Html.BeginForm("Move", "Housing", new { personID = @Model.person.ID , housingID= @Model.newHousing.AvailableHousingID}, FormMethod.Post, new { }) 
+0

对不起,忘了将HousingID参数移出Move方法。当我使用隐藏的时候,我并没有使用这个参数,因为至少我认为它是应该处理的。 – Kramb

+0

然后你应该遵循斯蒂芬的观点/想法 - 这正是他所建议的。 。 – FakeisMe

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