Question

我在MVC中发送checkboxes和EditorFor值时遇到麻烦。我有两节课：

public class CompleteReceiving
 {
   public List<SiteOrderReceiving> order_detail { get; set; } //<- Data from DB. It contains all items for Order Receiving.
   public List<SomeClass> new_form { get; set; } //<- Fields for form
 }  

public class SomeClass
 {
        [RegularExpression("^[0-9]*$", ErrorMessage = "Receive Quantity can only contain number")]
        public decimal? receive_quantity { get; set; }

        [RegularExpression("^[0-9]*$", ErrorMessage = "Damaged Quantity can only contain number")]
        public decimal? damaged_quantity { get; set; }  

        public bool IsSelected { get; set; }
 }

这是我的观点：

    @for(int i = 0; i < Model.order_detail.Count; i++)
     {  
      <tr> 
        <td>@Html.CheckBoxFor(m => m.new_form[i].IsSelected, new { id = "site_rec_checkbox", @class= "site_rec_checkbox" })
       </td>  
       <td>@Html.EditorFor(m => m.new_form[i].receive_quantity, new { htmlAttributes = new { @class = "form-control fm", @autocomplete = "off", @autofocus = "autofocus", @placeholder = "Receiving Quantity" } })
         @Html.ValidationMessageFor(m => m.new_form[i].receive_quantity, "", new { @class = "text-danger" })
       </td>  
     }

这是我的控制器操作代码：

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult SiteOrderReceiving(CompleteReceiving sor)
 {
     //Code for post
 }

问题在于，只要我在checkbox或index以外的其他1中选择2，List始终为null。但是，如果我第一次选择3或4，然后选择1或2，那还是不错。我不知道我在做什么错。
任何帮助将非常感激。

更新
这是我的控制器Action Code

 [HttpGet]
 public ActionResult SiteOrderReceiving(int? order_id)
 {
   var get_detail = (from oa in db.order_send
                     where oa.order_id == order_id 
                     select new SiteOrderReceiving()
                     {
                       quantity_send = oa.send_quantity,
                       date_send = oa.send_date,
                       order_id = oa.order_id
                     }).ToList();
  var a = new CompleteReceiving();
  a.order_detail = get_detail;
  return View(a);
}

这是我的View

@using (Html.BeginForm("SiteOrderReceiving", "Site", FormMethod.Post, new { id = "receive_form" }))
{
  @Html.AntiForgeryToken();
  @Html.ValidationSummary(true, "", new { @class = "text-danger" })

@for(int i = 0; i < Model.order_detail.Count; i++)
{  
 <tr> 
     <td>@Html.CheckBoxFor(m => m.new_form[i].IsSelected, new { id = "site_rec_checkbox", @class= "site_rec_checkbox" })
     </td>  
     <td>@Html.EditorFor(m => m.new_form[i].receive_quantity, new { htmlAttributes = new { @class = "form-control fm", @autocomplete = "off", @autofocus = "autofocus", @placeholder = "Receiving Quantity" } })
         @Html.ValidationMessageFor(m => m.new_form[i].receive_quantity, "", new { @class = "text-danger" })
     </td>  
  }

}

Answer 1

所以我解决了我的问题。我所做的是将form的属性移到现有类中，在该类中我正在从DB获取数据。
现在我的ViewModel看起来像这样：

public class CompleteReceiving
{
  public List<SomeClass> order_detail { get; set; }  
  //Some Other properties
}

然后：

public class SomeClass
{  
   [RegularExpression("^[0-9]*$", ErrorMessage = "Receive Quantity can only contain number")]
   public decimal? receive_quantity { get; set; }

   [RegularExpression("^[0-9]*$", ErrorMessage = "Damaged Quantity can only contain number")]
   public decimal? damaged_quantity { get; set; }  

   public bool IsSelected { get; set; }    

   public string item_name { get; set; }
}

像上面那样更新我的code之后，一切开始正常运行。希望它对以后的人有所帮助。

复选框列表始终为空MVC

1 个答案: