如何从jQuery数据表中的Ajax数据源获取mRender（）函数中的隐藏列值

我试图从asp.net mvc5中的ajax源创建jQuery数据表。我想添加一个额外的列用于编辑和删除，该列不在我的模型类或ajax数据源中。对于编辑和删除功能，我需要Id列的值，该值未在数据表中显示。

这是我的Model类：

public class Country
{
    public int Id { get; set; }
    [Required(ErrorMessage = "Country Code Name Must not be empty")]
    public String Code { get; set; }
    [Required(ErrorMessage = "Country Name Must not be empty")]
    public String Name { get; set; }
    [Required(ErrorMessage = "Template Name Must not be empty")]
    public String Template { get; set; }
    [Required(ErrorMessage = "SPViews Name Must not be empty")]
    public String SPViews { get; set; }
}

这是我的控制器：

    public ActionResult GetAll(JQueryDataTableParamModel param)
    {
        var countryList = _repository.GetAll().ToList();
        var filteredCountry = (from e in countryList
                               where (param.sSearch == null || e.Name.ToLower().Contains(param.sSearch.ToLower()))
                               select e).ToList();
        var result = from country in filteredCountry.Skip(param.iDisplayStart).Take(param.iDisplayLength)
                     select new[] { country.Id,country.Code, country.Name, country.Template, country.SPViews };

        return Json(new
        {
            sEcho = param.sEcho,
            iTotalRecords = countryList.Count(),
            iTotalDisplayRecords = filteredCountry.Count,
            aaData = result
        }, JsonRequestBehavior.AllowGet);
    }

这是我的html表：

<table id="countryListTable" class="table table-condensed">
<thead>
    <tr>
        <th>Id</th>
        <th>Code</th>
        <th>Name</th>
        <th>Template</th>
        <th>SPViews</th>
        <th>&nbsp;</th>
    </tr>
</thead>
<tbody>
</tbody>
</table>

最后是我的jQuery代码：

     var countryTable = $("#countryListTable").dataTable({
            "bServerSide": true,
            "bProcessing": true,
            "sAjaxSource": "/Country/GetAll",
            "aoColumns": [
                null,
                null,
                null,
                null,
                {     // fifth column (Edit link)
                    "mData": "Id",
                    "bSearchable": false,
                    "bSortable": false,
                    "mRender": function (nRow, aData) {
                        //need to get the Id column value
                        return '<a class="glyphicon glyphicon-pencil" href="/Country/Edit/">Edit</a><a class="glyphicon glyphicon-remove" href="/Country/Delete/">Delete</a>';
                    }
                }
            ]
        });

任何帮助，将不胜感激。问候 ：）