Pass (Send) Model as parameter from Bootstrap Modal PopUp to Controller in ASP.Net MVC

I will get back to you soon.

Hi bigbear,

Check this example. Now please take its reference and correct your code.

Model

public class CustomerModel
{
    [Required(ErrorMessage = "Name is required.")]
    public string Name { get; set; }
}

Controller

public class HomeController : Controller
{
    // GET: /Home/
    public ActionResult Index()
    {
        return View(new CustomerModel());
    }

    [ValidateAntiForgeryToken]
    [HttpPost]
    [HandleError]
    public ActionResult UpdateServiceTables(CustomerModel model)
    {
        return PartialView("_SearchCustomer", model);
    }

    public JsonResult GetServiceQuote(int? id)
    {
        if (id == null) { return null; }
        var vm = new CustomerModel();
        vm.Name = "Test";
        return Json(vm, JsonRequestBehavior.AllowGet);
    }
}

View

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" />
<script src="../../Scripts/MicrosoftAjax.js" type="text/javascript"></script>
<script src="../../Scripts/MicrosoftMvcAjax.js" type="text/javascript"></script>
<script type="text/javascript">
    $(function () {
        $('.openModal').on('click', function () {
            var quoteid = $(this).attr("data-quoteid");
            $.ajax({
                type: "GET",
                url: "/Home/GetServiceQuote/",
                contentType: "application/json; charset=utf-8",
                data: { "id": quoteid },
                datatype: "Json",
                success: function (data) {
                    var modalA = $('#modalInnerSQ');
                    var body = $('.modal-body');
                    var quoteid = modalA.find(body).find('#Name');
                    $(quoteid).val(data.Name);
                    OpenServiceQuoteModal();
                }
            });
        });
    });

    function OpenServiceQuoteModal() {
        $('#modalInnerSQ').modal('show');
    }
</script>
<input type="button" class="openModal btn btn-primary" data-quoteid="1" value="Open" />
<%using (Html.BeginForm("UpdateServiceTables", "Home", FormMethod.Post, new { model = Model }))
    {%>
<div class="modal fade" id="modalInnerSQ" tabindex="-1" role="dialog" aria-labelledby="lblSQmodal"
    aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h4 class="modal-title">
                    <b>Service Quote Details</b></h4>
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                    <span aria-hidden="true">&times;</span>
                </button>
            </div>
            <div class="modal-body" id="modalbody">
                <%:Html.Partial("_SearchCustomer")%>
            </div>
            <div class="modal-footer">
                <input type="submit" name="submit" class="btn btn-success pull-right" value="Ok" />
            </div>
        </div>
    </div>
</div>
<% } %>

PartialView

<%:Html.AntiForgeryToken() %>
<%:Html.ValidationSummary(true, "", new { @class = "text-danger" })%>
<table>
    <tr>
        <td>
            Name
        </td>
        <td>
            <%:Html.TextBoxFor(model => model.Name)%>
            <%:Html.ValidationMessageFor(model => model.Name, "", new { @class = "text-danger" })%>
        </td>
    </tr>
</table>

Screenshot