model not passing data to controller from modal popup

Question

I have generated a partial view inside bootstrap modal popup which searches for the data from textbox on click of search Button within that modal popup.

I am using Ajax.BeginForm to send the data. But still my controller doesn't get the data i am paasing. I am using @Html.TextBoxFor in the view.(MVC)

 

Modal Popup View

@using (Html.BeginForm(FormMethod.Post))

{

<input type="button" class="aslink modal-link" data-toggle="modal" data-target="#modal2" id="btnSearchModal" value="Search company" onclick="SearchModal()">

@using (Ajax.BeginForm("_ModalSearch", "controller", new AjaxOptions() { UpdateTargetId = "Search" }))

{

<div id="Search">

@using (Html.BeginFormGroup(m => m.CompanyName))

{

@Html.TextBoxFor(m => m.CompanyName)

}

</div>

}

 

My Controller

public ActionResult _ModalSearch()

{

var model = new CompanyModel();

RefreshCompanyModel();

return PartialView("_OperatorSearch",model);

}

[HttpPost]

public ActionResult _ModalSearch(CompanyModel model)

{

var companyResults = GetCompanyResults(model);

return PartialView("_OperatorSearch", companyResults);

}

so when i am inserting any value into textbox from modal popup view, it should pass to controller via model which is not working here.