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我對C#和MVC非常陌生,這可能看起來像一個基本問題,但即使在尋找具有類似問題的人之後,我也無法做到這一點工作。爲什麼提交按鈕將空數據從視圖傳遞到控制器
問題是我在編輯視圖上的提交按鈕,出於某種原因將空數據傳遞給Update方法而不是表單輸入數據。
這是視圖:
<div class="row-fluid metro">
<div class="span2 offset4">
@using (Html.BeginForm("Update", "Realty", FormMethod.Post))
{
@Html.HiddenFor(model => model.Address)
@Html.HiddenFor(model => model.Details)
@Html.HiddenFor(model => model.Manager)
@Html.ValidationSummary(true)
<div class="control-group">
<label class="control-label">Details</label>
<div class="controls">
@Html.EditorFor(model => model.Details)
@Html.ValidationMessageFor(model => model.Details)
</div>
</div>
<div class="control-group">
<label class="control-label">Address</label>
<div class="controls">
@Html.EditorFor(model => model.Address)
@Html.ValidationMessageFor(model => model.Address)
</div>
</div>
<div class="control-group">
<label class="control-label">Manager</label>
<div class="controls">
@Html.DropDownListFor(model => model.Manager.Id, Model.Managers)
</div>
</div>
<div class="form-actions">
<button type="submit" class="btn btn-primary">Guardar</button>
<a href="@Url.Action("Index", "Realty")"><button type="button" class="btn">Cancelar</button></a>
</div>
}
</div>
這是視圖模型 公共類RealtyViewModel {/// /// 獲取或設置ID。 /// public int Id {get;組; }
public string Address { get; private set; }
/// <summary>
/// Gets the details.
/// </summary>
public string Details { get; private set; }
public List<HomeViewModel> Homes { get; private set; }
/// <summary>
/// Gets the manager.
/// </summary>
public IEnumerable<SelectListItem> Managers { get; set; }
public ManagerViewModel Manager { get; private set; }
public RealtyViewModel(int id,string Address, string Details, ManagerViewModel Manager)
{
this.Id = id;
this.Address = Address;
this.Details = Details;
this.Manager = Manager;
}
public RealtyViewModel() {}
}
}
而且finnally,這是來自控制器的更新方法,如果需要:
public ActionResult Update(RealtyViewModel model)
{
if (model.Id == 0)
{
var manager = this.managerService.Get(model.Manager.Id);
this.realtyService.Create(model.Address, model.Details,manager);
}
else
{
var manager = this.managerService.Get(model.Manager.Id);
this.realtyService.Update(model.Id,model.Address, model.Details, manager);
}
return this.RedirectToAction("Index");
}
任何幫助將不勝感激,謝謝提前。
public ActionResult Edit(int id)
{
List<SelectListItem> managers = new List<SelectListItem>();
var model = new RealtyViewModel();
if (id != 0)
{
var realty = this.realtyService.Get(id);
var mvm = new ManagerViewModel(realty.Manager.Id, realty.Manager.Name, realty.Manager.Age);
model = new RealtyViewModel(realty.Id, realty.Address, realty.Details, mvm);
}
foreach (var Manager in managerService.GetAll())
{
managers.Add(new SelectListItem { Value=Manager.Id.ToString(),Text=Manager.Name});
}
model.Managers = managers;
return this.View(model);
}
是否調試器進入你的操作方法刪除隱藏字段?如果您的表單值通過此處,請檢查Request.Form? – Vladimirs 2013-04-05 22:05:47
我進入該方法,但參數上的所有屬性都爲null。如何檢查Request.Form? – 2013-04-05 22:08:13
作爲一個選項,您可以使var form = Request.Form;在你的行動中,並檢查從集合中是否存在你的價值觀。或者,您可以在調試時添加監視Request.Form並查看此值 – Vladimirs 2013-04-05 22:12:05