Asp.net mvc 3 在局部视图中编辑集合

我在更新对象的子集合时遇到问题，此问题已通过以下指南解决：

清理代码时，我将集合编辑移到了局部视图

@Html.Partial("_AttendeeInformationFields", Model.CaptureAttendeeInformationFields)

局部视图如下所示

@model ICollection<EventModel.Models.AttendeeInformationField>
<table id="CaptureAttendeeInformationFields">
    <tr>
        <th>@Html.GetDisplayName(model => model.FirstOrDefault().Name)</th>
        <th>@Html.GetDisplayName(model => model.FirstOrDefault().Required)</th>
        <th>@Html.GetDisplayName(model => model.FirstOrDefault().FieldType)</th>
        @*<th>@Html.GetDisplayName(model => model.FirstOrDefault().InputType)</th>*@
    </tr>
    @Html.EditorForModel()
</table>
@Html.LinkToAddNestedForm("Lägg till", "#CaptureAttendeeInformationFields", ".AttendeeInformationField", "CaptureAttendeeInformationFields", typeof(EventModel.Models.AttendeeInformationField))
@Html.ValidationMessageFor(model => model)

@model EventModel.Models.AttendeeInformationField
<tr class="AttendeeInformationField">
@using (Html.BeginCollectionItem("CaptureAttendeeInformationFields"))
{
    <td>@Html.TextBoxFor(model => model.Name) @Html.HiddenFor(model => model.MagnetEventId) @Html.HiddenFor(model => model.Id)</td>
    <td>@Html.CheckBoxFor(model => model.Required)</td>
    <td>@Html.DropDownListFor(model => model.FieldType, new SelectList(Enum.GetValues(typeof(EventModel.Models.FieldType)), Model.FieldType))</td>
    @*<td>@Html.TextBoxFor(model => model.InputType)</td>*@
}
</tr>

我一点也不喜欢，但它很管用。一定有更好的办法

foreach (var attendeeInformationField in viewModel.AttendeeInformationFields)
        {
            var attendeeInformationFieldId = attendeeInformationField.Id;
            var originalAttendeeInformationField = original.CaptureAttendeeInformationFields.FirstOrDefault(aif => aif.Id == attendeeInformationFieldId);
            if (originalAttendeeInformationField==null)
            {
                original.CaptureAttendeeInformationFields.Add(attendeeInformationField);
            }
            else
            {
                if (originalAttendeeInformationField != attendeeInformationField)
                {
                    originalAttendeeInformationField = attendeeInformationField;
                    originalAttendeeInformationField.FieldType = attendeeInformationField.FieldType;
                    //originalAttendeeInformationField.InputType = attendeeInformationField.InputType;
                    originalAttendeeInformationField.Name = attendeeInformationField.Name;
                    originalAttendeeInformationField.Required = attendeeInformationField.Required;
                }
            }
        }