Question

当我尝试显示viewbag的值时，我收到异常。我加入了两个表并使用Linq将该数据存储在viewbag中。

这是我的控制器操作方法

    public ActionResult HRSeparationDetails()
    {
        //List<trnEsSeparationDetail> separationlist = (from list in db.trnEsSeparationDetails
        //                                              select list).ToList();


        ViewBag.SeparationList = (from list in db.trnEsSeparationDetails
                                                      join R in db.mstEsEmpReasonForSeparations
                                                          on list.ReasonForSeperationId equals R.intSeperationId
                                                      select new
                                                      {
                                                          intEmployeeId = list.intEmpId,
                                                          ReasonForSeparation = R.txtReasonForSeperation,
                                                          ResiganationDate = list.dtResignationDate,
                                                          RelievingDate = list.dtRequestedRelievingDate,
                                                          SeparationRemarks = list.txtRemark
                                                      }).ToList();

         return View();
    }

这是我的浏览页

     @model IEnumerable<EMPApp.Models.trnEsSeparationDetail>
     @{
     ViewBag.Title = "HRSeparationDetails";
        Layout = "~/Views/Shared/_Layout.cshtml";
     }

      <h2>HRSeparationDetails</h2>
      <div>
     @if (ViewBag.SeparationList == null)
    {
        <div style="color:green"><h3>@ViewBag.SeparationerrorMessage</h3></div>
    }
    else
    { 
        <table class="grid" cellpadding="0" cellspacing="0">
            <tr>
                <th>
                    <b>Employee Id</b>
                </th>
                @*<th>
                    <b>ReasonForSeparationId</b>
                </th>*@
                <th>
                    <b>Reason For Separation</b>
                </th>
                <th>
                    <b>Resignation Date</b>
                </th>
                <th>
                    <b>Relieving Date</b>
                </th>
                <th>
                    <b>Separation Remarks</b>
                </th>
            </tr>
            @foreach (var item in ViewBag.SeparationList)
            {
                <tr>
                    <td>
                        @item.intEmployeeId
                        @*@{
                            Session["SeparationEmpId"] = item.intEmpId;
                        }
                        @Html.ActionLink(Session["SeparationEmpId"].ToString(), "EmployeeDashboard", "HRAdmin", new { id = @item.intEmpId }, null)*@
                    </td>
                    @*<td>
                        @item.ReasonForSeperationId
                    </td>*@
                    <td>
                        @item.ReasonForSeparation
                    </td>
                    <td>
                        @item.ResiganationDate
                    </td>
                    <td>
                        @item.RelievingDate
                    </td>
                    <td>
                        @item.SeparationRemarks
                    </td>
                </tr>
            }
        </table>
    }

任何帮助将不胜感激。感谢..

Answer 1

ViewBag是一个动态对象，您可以将该属性设置为匿名对象的集合。在你的foreach循环中

@foreach (var item in ViewBag.SeparationList)

项为typeof object，object没有属性intEmployeeId（或您在匿名对象中定义的任何其他属性）。处理此问题的一种方法是使用要显示的属性创建视图模型

public class SeparationDetailVM
{
  public int intEmployeeId { get; set; }
  public DateTime ResiganationDate { get; set; }
  ....
}

并在控制器中

var details = (from list in ....
               select new SeparationDetailVM
               {
                  intEmployeeId = list.intEmpId,
                  ResiganationDate = list.dtResignationDate,
                  ....
               }).AsEnumerable();
return View(details); // no need for ViewBag

并在视图中

@model IEnumerable<YourAssembly.SeparationDetailVM>
....
@foreach (var item in Model)
{
  ....
  <td>@item.intEmployeeId</td>
  <td>@item.ResiganationDate</td>
  ....
}

'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException''object'不包含'intEmployeeId'的定义

1 个答案: