如何仅从asp.net mvc中的主模型发送视图模型？

如何解决如何仅从asp.net mvc中的主模型发送视图模型？

我已经将HTML.BeginForm用于我的MVC表单。这里是html代码

arr = [18,4,6]
count = 0
for i in range(len(arr):
    if arr[i] != 0:
        arr[i],arr[count] = arr[count],arr[i]
        count += 1

我的视图模型是

@model TodayViewModel
@{
    ViewBag.Title = "Work Completed Today";
    Layout = "~/Views/Shared/_LayoutBackend.cshtml";
}

 @using (Html.BeginForm("Create","CustomActivity",FormMethod.Post,new { role = "form",@id = "customActivityForm",@class = "activityForm" }))
                    {
                        <div>
                            <div class="myClass">
                            </div>

                            <div class="container" id="workordercategories">
                                @Html.LabelFor(m => m.CustomActivity.WorkOrderCategoriesName,new { @class = "" })
                                @Html.TextBoxFor(m => m.CustomActivity.WorkOrderCategoriesName,new { @class = "w100p mb0" })
                                @Html.ValidationMessageFor(m => m.CustomActivity.WorkOrderCategoriesName,"",new { @class = "text-danger" })
                            </div>


                            <div class="container" id="activity">
                                @Html.LabelFor(m => m.CustomActivity.Activity,new { @class = "" })
                                @Html.TextBoxFor(m => m.CustomActivity.Activity,new { @class = "w100p mb0" })
                                @Html.ValidationMessageFor(m => m.CustomActivity.Activity,new { @class = "text-danger" })
                            </div>
                        </div>
                     }

在提交控制器方法时，是：

  public class TodayViewModel
    {
        public IList<TodayListViewModel> TodaysVM { get; set; }
        public CustomActivityViewModel CustomActivity { get; set; }

    }

 public class CustomActivityViewModel
    {
        [Required,Display(Name = "Work Category Name")]
        public string WorkOrderCategoriesName { get; set; }
        [Required]
        public string Activity { get; set; }
    }

在控制器方法中，我必须使用[HttpPost] public ActionResult Create(TodayViewModel model) { // to do here } ，其中有两种方法TodayViewModel始终为空。有什么方法可以提交表单，以便我可以在Controller中使用(TodaysVM)而不是 CustomActivityViewModel吗？现在，如果我使用CustomActivityViewModel，则控制器中的值为null。

解决方法

如果您无法在View中使用CustomActivityViewModel，请尝试

[HttpPost]
public ActionResult Create(TodayViewModel model)
{
     CustomActivityViewModel obj = model.CustomActivity;

     //....
}