// Где происходит вставка паршиал вью  
            @foreach (var post in Model.CompanyPosts)
            {
                <tr>

                    <div id='row_@i'>
                        @Html.Action("DisplayInputForm", new { cp = post, num = i })
                    </div>
                </tr>

                {
                    i++;
                }
            }
// само паршил вью
@using (@Ajax.BeginForm("Edit", "CompanyPosts", FormMethod.Post, new AjaxOptions() {UpdateTargetId = "row_"+Model.FormNumber, InsertionMode = InsertionMode.Replace}, new { role = "form", id = "form" + @Model.FormNumber }))
{
    @Html.Hidden("FormNumber", Model.FormNumber)
    @Html.Hidden("CompanyPost.Id", Model.CompanyPost.Id)
    <td class="custom_cell">
        @Html.TextBox("CompanyPost.PostName", Model.CompanyPost.Post.Name, new { @class = "form-control input_in_cell", onchange = "return form" + @Model.FormNumber + ".submit()" })
    </td>
    <td class="custom_cell">
        @Html.TextBox("CompanyPost.Rate", Model.CompanyPost.Rate, new { @class = "form-control input_in_cell", onchange = "return form" + @Model.FormNumber + ".submit()" })
    </td>
}
// методы гет и пост паршиал вью
        public PartialViewResult DisplayInputForm(CompanyPosts cp, int num)
        {
            CompanyPostsInputViewModel model = new CompanyPostsInputViewModel()
            {
                CompanyPost = cp,
                FormNumber = num
            };

            return PartialView(model);
        }

        [HttpPost]
        public PartialViewResult Edit(CompanyPostsInputViewModel model)
        {
            if (ModelState.IsValid)
            {
                service.SaveCompanyPosts(model.CompanyPost);
            }
            return PartialView("DisplayInputForm", model);
        }