级联下拉mv4缺少什么？ [英] cascading dropdown mv4 missing what ?

问题描述

你好我正在尝试的每个人 获取数据当一个< span class =code-keyword> 我选择的下拉列表索引更改此处是我的代码我无法'   t得到错误或做错的地方我很高兴，如果你帮我谢谢你。 
 
这是我的脚本代码 

 $（ ＃ddOrder）。change（ function （e）{
 alert =  basıldı ; 
  var  oID = $（ this ）。val（）; 
 $ .getJSON（  ../ Accessory / loadWorkshops，{_ orderId：oID}，
  function （data）{
  var  select = $（ ＃ddAcc）; 
 select.empty（）; 
 select.append（$（ < option />'， {
值： 0 ，
 text： Aksesuarseçiniz 
}））; 
 $ .each（data， function （index，itemData）{
 select.append（$（' < option />'，{
 value：itemData.Value，
 text：itemData.Text 
}））; 
}）; 
}）; 
}）; 

这些是我的控制器代码

  public  ActionResult addAccessoryShipment（）
 {
  if （会话[  _ userName] ==  null ）
 {
  return  RedirectToAction（ 索引，  Home）; 
} 
 
 HelperPartial _helper =  new  HelperPartial（
 ViewData，
 Session [  _ userName]。ToString（），
 Session [  _ userPermissionId]。ToString（）
）; 
 
存储库<订单> _ro =  new 存储库< Order>（）; 
 IEnumerable< SelectListItem> _orderSelectListItem = _ro.All（）。AsEnumerable（）。选择（s = >   new  SelectListItem 
 {
 Text = s.code，
 Value = s.id.ToString（）
}）。OrderBy（o = >  o.Text）; 
 
 ViewData [  ddOrder] = _orderSelectListItem; 
 
存储库<附件列表> _ra =  new 存储库< AccessoryList>（）; 
 IEnumerable< SelectListItem> _clothSelectListItem = _ra.All（）。AsEnumerable（）。选择（s = >   new  SelectListItem 
 {
 Text = s.name，
 Value = s.id.ToString（）
}）。OrderBy（o = >  o.Text）; 
 
 ViewData [  ddaList] = _clothSelectListItem; 
 
 
  return 查看（）; 
} 
 
 [AcceptVerbs（HttpVerbs.Get）] 
  public  JsonResult loadWorkshops（ string  _orderId）
 {
  //   IEnumerable< MyCustomerProductType> _myCustomerProductType = _rc.All（）。选择（s => new MyCustomerProductType {id = s.id，customerName = s.customer.name，productTypeName = s.productType.name}）;  
 
  int  _oId = Convert.ToInt32（_orderId）; 
 
存储库< OrderCloth> _ra =  new 存储库< OrderCloth>（）; 
 
 IEnumerable< MyOrderCloth> _clothSelectListItem = _ra.All（）。其中​​（o = >  o.orderId == _oId）。选择（s =  >   new  MyOrderCloth 
 {
 workshopName = s.workshop.name，
 workshopId = s.workshopId 
}）; 
 
 List< SelectListItem> _workshopListItem =  new  List< SelectListItem>（）; 
 
  foreach （MyOrderCloth item  in  _clothSelectListItem）
 {
 _workshopListItem.Add（ new  SelectListItem 
 {
 Text = item.workshopName，
 Value = item.workshopId.ToString（） 
}）; 
} 
 
  //   ViewData [ddwList] = _workshopListItem;  
 
  return  Json（_workshopListItem，JsonRequestBehavior.AllowGet）; 
} 

这里是我的查看代码

 @ using（Html.BeginForm（AccessoryShipmentAdd，Accessory，FormMethod.Post））
 {
 @ Html.ValidationSummary（true）
 
 <   div     class   =  control-group >  
 <   label     class   =  control-label > Sipariş否<   / label  >  
 <   div     class   = 控制 >  
 @ Html.DropDownListFor（model => model.orderId，（IEnumerable <   SelectListItem  > ）ViewData [ddOrder]，seçimyapınız，new {id =ddOrder，@ class =span6 selected}）
 <   / div  >  
 @ Html.ValidationMessageFor（model => model.orderId）
 <   / div   >  
 
 <   div     class   =  control-group >  
 <   label     class   =   control-label > AtölyeSeçiniz <   / label  >  
 <   div     class   =  controls >  
 @ Html.DropDownListFor（model => model.workshopId，new SelectList（Enumerable.Empty  <   SelectListItem  > （），workshopId，workshopName）， seçimyapınız，new {@ id =ddAcc，@ class =span6 selected}）
 <   / div  >  
 @ Html.ValidationMessageFor（model => model.workshopId）
 <   / div   >  
 
 <   div     class   =  control-group >  
 <   label     class   =   control-label > AksesuarSeçiniz <   / label  >  
 <   div     class   =  controls  >  
 @ Html.DropDownListFor（model => model.accessoryListId，（IEnumerable < ;   SelectListItem  > ）ViewData [ddaList]，seçimyapınız，new {@class =span6 selected}）
 <   / div  >  
 @ Html.ValidationMessageFor（model => model.accessoryListId）
 <   / div   >  

我可以从loadWorkshops类获取数据，但它不会返回到我的下拉列表。我能为此做些什么？>

解决方案

（ #ddOrder）。change（ function （e）{
alert = basıldı;
var oID =

< blockquote>（ this ）。val（）;

.getJSON（ ../ Accessory / loadWorkshops，{_ orderId：oID}，
function （数据）{
var select =

hello everybody I am trying to get data when one of my dropdown selected index change here are my codes I couldn't get where am ı missing or doing something wrong I am very glad if you help me thank you .

this is my script code

$("#ddOrder").change(function (e) {
            alert = "basıldı";
            var oID = $(this).val();
            $.getJSON("../Accessory/loadWorkshops", { _orderId: oID },
                   function (data) {
                       var select = $("#ddAcc");
                       select.empty();
                       select.append($('<option/>', {
                           value: 0,
                           text: "Aksesuar seçiniz"
                       }));
                       $.each(data, function (index, itemData) {
                           select.append($('<option/>', {
                               value: itemData.Value,
                               text: itemData.Text
                           }));
                       });
                   });
        });

these are my controller codes

public ActionResult addAccessoryShipment()
    {
        if (Session["_userName"] == null)
        {
            return RedirectToAction("Index", "Home");
        }

        HelperPartial _helper = new HelperPartial(
            ViewData,
            Session["_userName"].ToString(),
            Session["_userPermissionId"].ToString()
            );

        Repository<Order> _ro = new Repository<Order>();
        IEnumerable<SelectListItem> _orderSelectListItem = _ro.All().AsEnumerable().Select(s => new SelectListItem
        {
            Text = s.code,
            Value = s.id.ToString()
        }).OrderBy(o => o.Text);

        ViewData["ddOrder"] = _orderSelectListItem;

        Repository<AccessoryList> _ra = new Repository<AccessoryList>();
        IEnumerable<SelectListItem> _clothSelectListItem = _ra.All().AsEnumerable().Select(s => new SelectListItem
        {
            Text = s.name,
            Value = s.id.ToString()
        }).OrderBy(o => o.Text);

        ViewData["ddaList"] = _clothSelectListItem;


        return View();
    }

    [AcceptVerbs(HttpVerbs.Get)]
    public JsonResult loadWorkshops(string _orderId)
    {
        //IEnumerable<MyCustomerProductType> _myCustomerProductType = _rc.All().Select(s => new MyCustomerProductType { id = s.id, customerName = s.customer.name, productTypeName = s.productType.name });

        int _oId = Convert.ToInt32(_orderId);

        Repository<OrderCloth> _ra = new Repository<OrderCloth>();

        IEnumerable<MyOrderCloth> _clothSelectListItem = _ra.All().Where(o => o.orderId == _oId).Select(s => new MyOrderCloth
        {
            workshopName = s.workshop.name,
            workshopId = s.workshopId
        });

        List<SelectListItem> _workshopListItem = new List<SelectListItem>();

        foreach (MyOrderCloth item in _clothSelectListItem)
        {
            _workshopListItem.Add(new SelectListItem
            {
                Text = item.workshopName,
                Value = item.workshopId.ToString()
            });
        }

        //ViewData["ddwList"] = _workshopListItem;

        return Json(_workshopListItem, JsonRequestBehavior.AllowGet);
    }

and here are my view codes

@using (Html.BeginForm("AccessoryShipmentAdd", "Accessory", FormMethod.Post))
{
        @Html.ValidationSummary(true)

    <div class="control-group">
        <label class="control-label">Sipariş No</label>
        <div class="controls">
            @Html.DropDownListFor(model=>model.orderId,(IEnumerable<SelectListItem>)ViewData["ddOrder"],"seçim yapınız",new {id="ddOrder", @class = "span6 chosen"})
        </div>
        @Html.ValidationMessageFor(model => model.orderId)
    </div>

    <div class="control-group">
        <label class="control-label">Atölye Seçiniz</label>
        <div class="controls">
            @Html.DropDownListFor(model=>model.workshopId,new SelectList(Enumerable.Empty<SelectListItem>(),"workshopId","workshopName"),"seçim yapınız",new {@id="ddAcc" ,@class = "span6 chosen"})
        </div>
        @Html.ValidationMessageFor(model => model.workshopId)
    </div>

    <div class="control-group">
        <label class="control-label">Aksesuar Seçiniz</label>
        <div class="controls">
            @Html.DropDownListFor(model=>model.accessoryListId,(IEnumerable<SelectListItem>)ViewData["ddaList"],"seçim yapınız",new { @class = "span6 chosen"})
        </div>
        @Html.ValidationMessageFor(model => model.accessoryListId)
    </div>

I can get datas from loadWorkshops class but it doesnt return to my dropdown. what can I do for this ?>

解决方案

("#ddOrder").change(function (e) { alert = "basıldı"; var oID =

(this).val();

.getJSON("../Accessory/loadWorkshops", { _orderId: oID }, function (data) { var select =

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