.NET MVC编辑器模板在回发时不返回数据

我需要显示一个动态复选框列表(数据来自数据库)。我有一个复选框的视图模型。

public class AmenitiesListViewModel
    {
        public int AmenityId { get; set; }
        public string Title { get; set; }
        public bool Checked { get; set; }
        public string ImageSrc { get; set; }
    }

另一个ViewModel具有该ViewModel的ICollection对象。

public class HouseAmenityViewModel
    {
        public HouseAmenityViewModel()
        {
            Amenities = new HashSet<AmenitiesListViewModel>();
        }

        [HiddenInput]
        public Guid HouseId { get; set; }
        public ICollection<AmenitiesListViewModel> Amenities { get; set; }
    }

然后,我创建了一个服务来准备来自数据库的复选框列表。

var amenities = await _amenityRepository.ListAmenitiesAsync();
                if (amenities != null)
                {
                    model.HouseId = houseId;
                    foreach (var amenity in amenities)
                    {
                        model.Amenities.Add(new AmenitiesListViewModel
                        {
                            AmenityId = amenity.AmenityId,
                            Title = amenity.Description,
                            Checked = false,
                            ImageSrc = string.Format(_imageOptions.AmenityImagePath, amenity.ImageFileName)
                        });
                    }
                }

在我看来,我正在使用 @Html.EditorFor 以呈现复选框列表。

<form asp-action="UpdateHouseAmenity" asp-controller="Admin" method="post" id="update-amenity-form" class="amenity-form">

        <input asp-for="HouseId" />
        <div class="row"><div class="col-md-12">@Html.EditorFor(m => m.Amenities)</div></div>
        <div class="row">
            <div class="col-md-12 mt-10">
                <button type="submit" class="btn btn-primary" id="update-amenity-button">Submit</button>
                <button type="button" class="btn btn-danger">Reset</button>
            </div>
        </div>

</form>

编辑器模板如下所示:

@model HouseRentalManagement.Models.AdminViewModels.AmenitiesListViewModel

<div class="container mt-10" style="width: 30%;
  display: inline-block;
  float: left;">

    <label>
        <img src="@Model.ImageSrc" style="height: 30px; width: 30px;" />

        <input type="checkbox" @string.Format("{0}", Model.Checked ? "checked" : "") /> @Model.Title
    </label>
</div>

我的视图中正确显示了复选框列表。我的表格正在提交给指定的操作。

问题是:当我屈服的时候,我什么也得不到 @Html.EditorFor(m => m.Amenities) 收集。

控制器:

public async Task<IActionResult> UpdateHouseAmenity(HouseAmenityViewModel model)
        {
            var result = await _houseService.UpdateHouseAmenitiesAsync(model);            
        }

这里要注意的一点是,在页面加载后,这个视图是使用ajax呈现的。 阿贾克斯:

var loadAmenity = function () {
        $.ajax({
            url: "/Admin/GetHouseAmenities"
        }).done(function (data) {
            $('#amenity-info').html(data);
        }).fail(function (a, textError) {
            console.error(textError);
        });
    };

控制器:

var model = await _houseService.GetHouseAmenityViewModelAsync(new Guid());
            return PartialView("~/Views/Admin/_HouseAmenityPartial.cshtml", model);