2016-12-09 80 views
0

我很確定我的大腦是朋友,這是我明天早上要笑的東西,但不幸的是我卡在這一部分,並尋求幫助。無法將價值傳遞給控制器​​從視圖通過viewmodel

我有一個視圖模型:

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(); 
    } 
} 

這種觀點我的控制器方法:

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()); 
} 

而且我的表單工作正常,所有除1我的領域,這就是該AvailableHousingID。我試着設置一個隱藏的值。我在設置隱藏字段的值處放置了一個斷點,並且我觀察它發生了變化,但是它沒有將其傳遞給控制器​​。所以我將它改爲表單提交,並嘗試將其作爲路由值來捕獲,但這也不起作用。我無所適從,任何人都可以看到我要去哪裏錯了?

編輯:添加視圖

@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

可你也同意這樣的觀點 – Usman

+5

(1)查看模型永遠不應該包含數據庫訪問代碼(2)查看模型在編輯時不應包含數據模型。 (3)你將'HousingDetailsViewModel'傳遞給視圖,這樣你的post方法需要是'public ActionResult Move(HousingDetailsViewModel model)'(4)你看起來沒有無參數的構造函數,所以DefaultModelBinder會拋出一個異常你修復點3 –

+0

@Usman,我已更新顯示視圖。我展示了BeginForm的用法,我不使用Move方法的housingID參數。我想我應該把它拿出來。 – Kramb

回答

0

對於路線:

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

對不起,忘了將HousingID參數移出Move方法。當我使用隱藏的時候,我並沒有使用這個參數,因爲至少我認爲它是應該處理的。 – Kramb

+0

然後你應該遵循斯蒂芬的觀點/想法 - 這正是他所建議的。 。 – FakeisMe

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