C# html助手don'；t在ajax.begin之后从控制器获取值

我有一个ajax.beg通知，我必须上传一个文件，然后在视图中隐藏已上传文件的路径 保存在服务器中

问题是路径的值在post调用后不会返回到视图

我正在返回带有错误的新局部视图，但该值不存在 即将到来

请帮帮我

从控制器返回部分视图的post方法

[HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult SaveSocioDetails(SpSocio socio) // ajax for 1 step in socio
    {
        bool sociook = false;
        socio.StudentId = sStudentId; // bind student id to socio model
        socio = SocioDetValid(ref sociook,socio);
        // add validation
        if (ModelState.IsValid && sociook)
        {
            socio = SaveSocioModel(socio);
            Response.StatusCode = 200;
        }
        else
           Response.StatusCode = 300; // return error to client the model is not valid
        return PartialView("~/Views/Student/Socio/SocioDetails.cshtml", socio); // return the partial view of the forn with validation messages
    }

保存文件并将路径添加到路径字段的有效函数：

            // bank account validation and save
        if (socio.FileBankAccount == null) // if there is no file
        {
            if (socio.PathBankAccount == null) // check if he upload file already - if not add error message
            {
                ModelState.AddModelError("FileBankAccount", "חובה לצרף קובץ"); 
                ok = false;
            }
        }
        else // upload new the file
            socio.PathBankAccount = Files.SaveFileInServer(socio.FileBankAccount, "BankAccount", sStudentId, socio.PathBankAccount);

视图中用于上载的部分和路径字符串的隐藏部分：

<div class="row">
<div class="col-xl-3 col-lg-3 col-md-4 col-12 ">
    @Html.LabelFor(model => model.BankStatus, htmlAttributes: new { @class = "control-label col-12" })
    @Html.EditorFor(model => model.BankStatus, new { htmlAttributes = new { @class = "form-control must m-1 mt-0" } })
    @Html.ValidationMessageFor(model => model.BankStatus, "", new { @class = "text-danger" })
    @Html.HiddenFor(model => model.PathBankAccount)
</div>
<div class="col-xl-3 col-lg-3 col-md-4 col-12">
    @Html.LabelFor(model => model.FileBankAccount, htmlAttributes: new { @class = "control-label col-12 must-sign", @for = "" })
    <div class="chose-file m-1 mt-0">
        @Html.TextBoxFor(model => model.FileBankAccount, new { @class = "form-control must", @type = "file", @accept = "image/jpeg,image/jpg,image/png,application/pdf", @style = "display:none;" })
        <label for="FileBankAccount">
            <i class="ml-1 material-icons">add_photo_alternate</i>
            בחר קובץ
        </label>
    </div>
    @Html.ValidationMessageFor(model => model.FileBankAccount, "", new { @class = "text-danger" })
</div>
@*
<div class="col-xl-3 col-lg-3 col-md-4 col-12" style="display:@(Model.PathBankAccount != null ? "" : "none")">
    <label class="control-label col-12" for="">קובץ שמור</label>
    <a name="@Model.PathBankAccount" class="btn btn-light btn-file m-1 mt-0">צפייה בקובץ שמור</a>
</div>*@

@LabelFor（model=>model.BankStatus，htmlAttributes:new{@class=“controllabel col-12”}）
@EditorFor（model=>model.BankStatus，new{htmlAttributes=new{@class=“form control must m-1 mt-0”}）
@Html.ValidationMessageFor（model=>model.BankStatus，“，new{@class=“text danger”}）
@Html.HiddenFor（model=>model.PathBankAccount）
@LabelFor（model=>model.FileBankAccount，htmlAttributes:new{@class=“control label col-12 must sign”，@for=”“}）
@Html.TextBoxFor（model=>model.FileBankAccount，新{@class=“form control must”、@type=“file”、@accept=“image/jpeg、image/jpg、image/png、application/pdf”、@style=“display:none；”
添加照片
בחר קובץ
@Html.ValidationMessageFor（model=>model.FileBankAccount，“，new{@class=“text danger”}）
@*
קובץ שמור

谢谢你的帮助

更新：

Ajax表单代码：这是Ajax在大视图中的一部分


@使用（Ajax.BeginForm（“savesocialdetails”、“Student”、新的AjaxOptions{HttpMethod=“POST”、OnSuccess=“firstsuccess”、OnFailure=“socialdetailsfail”、UpdateTargetId=“partialsocio”、LoadingElementId=“div_loading”}，新的{@enctype=“multipart/form data”}）
{
@Html.AntiForgeryToken（）
@Action（“partialSoCodetails”，“Student”，new{SpId=ViewBag.SpId}）
המשך
}

这是fail and success ajax的功能：


$（文档）.ready（函数（）
{
});
函数firstsuccess（）{
log（“这是ajaxSuccess”）；
$（“#下一步”）。单击（）；
}
函数SocialDetailsFail（bdata）{
log（'这是ajaxfail'）；
console.log（bdata.responseText）；
$（'partialsocio'）.html（bdata.responseText）；
}

在返回给客户端的脚本中，字符串的值不会出现

谢谢你的帮助

你能添加ajax表单代码吗？嗨，我添加了moe代码
    <fieldset>
    @using (Ajax.BeginForm("SaveSocioDetails", "Student", new AjaxOptions { HttpMethod = "POST", OnSuccess = "firstsuccess",OnFailure = "sociodetailsfail", UpdateTargetId="partialsocio" ,LoadingElementId = "div_loading" }, new { @enctype = "multipart/form-data" }))
    {
        @Html.AntiForgeryToken()
    <div id="partialsocio">
        @Html.Action("PartialSocioDetails", "Student", new { SpId = ViewBag.SpId })
    </div>
            <div id="div_loading" style="display:none;">
            <img src="@Url.Content("~/Content/Pic/Spinner.gif")" alt="" />
        </div>
        <button class="btn btn-primary" type="submit">המשך</button>
    }
    <input type="button" name="next" class="next action-button bg-primary" hidden value="Next" id="sociodetnext" />
</fieldset>

    <script>
   $(document).ready(function ()
    {
    });

    function firstsuccess() {
        console.log('this is ajaxSuccess');
        $("#sociodetnext").click();
    }

    function sociodetailsfail(bdata) {
        console.log('this is ajaxfail');
        console.log(bdata.responseText);
        $('#partialsocio').html(bdata.responseText);
    }
</script>