MVC如何在部分视图（创建）提交时点击控制器方法

Question

创建点击（第二部分视图）未进入动作控制器。我使用了两个局部视图。我尝试了以下步骤。请参阅随附的屏幕截图

1. 点击添加按钮（索引）时，下拉选择值将添加到局部视图（第一个局部视图）
2. 单击“编辑”，将另一个部分视图（第二个）加载到div。
3. 2＆PVD（创建）点击，我计划验证模型（SubmitReview），生成xml并更新到上一个局部视图，但这不会发生。请看下面的代码并建议我如何实现？

public ActionResult Index()
{
    var DBQList = DBActivity.Getdbqlist();
    DBQModel viewmodel = new DBQModel();
    var DBQSelectList = new SelectList(DBQList, "DBQ_ID", "DBQ_Name", "IsSelected");
    viewmodel.selectList = DBQSelectList;
    Session["Session_DBQModel"] = viewmodel;
    return View(viewmodel);
}

[HttpPost]
public ActionResult Index(DBQModel dbqModel)
{
    if (ModelState.IsValid)
    {
        //
    }
    var mdl = (DBQModel)Session["Session_DBQModel"];
    var selectedvalue = Convert.ToInt32(Request.Form["SelectedId"].ToString());
    var rows = DBActivity.Getdbqlist().FirstOrDefault(x => x.DBQ_ID == selectedvalue);
    if (rows != null)
    {
        DBQTable tbl = new DBQTable();
        tbl.DBQ_ID = rows.DBQ_ID;
        tbl.DBQ_Name = rows.DBQ_Name;
        tbl.DBQ_Desc = rows.DBQ_Desc;
        tbl.VAFormNo = rows.VAFormNo;
        mdl.dbqTable.Add(tbl);
    }
    Session["Session_DBQModel"] = mdl;
    return View(mdl);
}


public PartialViewResult LoadDBQ(int id)
{
    if (id==1)
    {
        EatingDisorder eatingDisorder = new EatingDisorder();
        return PartialView("_EatingDisorderPV", eatingDisorder);
    }
    return PartialView("_DefaultPV");
}

        [HttpPost]
    public ActionResult SubmitReview(EatingDisorder _model)
    {
        try
        {
            if (!ModelState.IsValid)
            {
                string messages = string.Join("; ", ModelState.Values
                                    .SelectMany(x => x.Errors)
                                    .Select(x => x.ErrorMessage));
                throw new Exception("Please correct the following errors: " + Environment.NewLine + messages);
            }

            if (_model.s1_Bulima)
            {
                if ((_model.s1_Bulima_Date != null) && (string.IsNullOrEmpty(_model.s1_Bulima_ICD)) && (!string.IsNullOrEmpty(_model.s1_Bulima_Name)))
                {
                    //ok
                }
                else
                {
                    ModelState.AddModelError("s1_Bulima_Date", "s1_Bulima_Date is required.");
                    ModelState.AddModelError("s1_Bulima_ICD", "s1_Bulima_ICD is required.");
                    ModelState.AddModelError("s1_Bulima_Name", "s1_Bulima_Name is required.");
                }
            }

            //save to db
            //return Json(new { Result = "OK" });

        }
        catch (Exception ex)
        {
            //return Json(new { Result = "ERROR", Message = ex.Message });
            ModelState.AddModelError("", ex.Message);
        }
        return PartialView("_EatingDisorderPV", _model);
    }

Iindex.cshtml

@model WebApplication1.Models.DBQModel
@using (Html.BeginForm())
{
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

    @Html.DropDownListFor(n => n.SelectedId, Model.selectList, "Please select dbq", new { @class = "from-control col-md-4" })
    <input type="submit" value="Add" class="btn btn-default" />

    @Html.Partial("_DBQGridPV", Model.dbqTable)

    <div id="DBQHolder"></div>
}

_DBQGridPV.cshtml

@model IEnumerable<WebApplication1.Models.DBQTable>
<table class="table">
    <tr>
        <th>@Html.DisplayNameFor(model => model.DBQ_ID)</th>
        .....
        <th></th>
    </tr>
    @foreach (var item in Model)
    {
        <tr>
            <td>@Html.DisplayFor(modelItem => item.DBQ_ID)</td>
            .....
            <td>
                @Ajax.ActionLink("Edit", "LoadDBQ", new { id = item.DBQ_ID }, 
                    new AjaxOptions { HttpMethod = "GET", UpdateTargetId = "DBQHolder", InsertionMode = InsertionMode.Replace })|
                @Html.ActionLink("Delete", "DeleteDBQ", new { id = item.DBQ_ID })
            </td>
        </tr>
    }
</table>

_EatingDisorderPV.cshtml

@model WebApplication1.Models.EatingDisorder
@using (Html.BeginForm())
{
    @Html.AntiForgeryToken()
    .....
    <input type="submit" value="Create" />
}