I need to implement partial view but getting the below error like "the name 'dt' does not exist in the current context

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C#

MVC4

controller code

  public class HomeController : Controller
    {
        public static string con_str = @"Data Source=10.0.0.222;Initial Catalog=Student;User ID=IAdmin;Password=sql2008@";
        public ActionResult Index()
        {
            return View();
        }

        [HttpPost]
        public ActionResult ViewResult()
        {
            SqlConnection con = new SqlConnection(con_str);
            con.Open();
            SqlCommand cmd = new SqlCommand("select * from Sturecord", con);
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            //SqlDataReader Myreader = cmd.ExecuteReader();
            DataTable dt = new DataTable();
            da.Fill(dt);
            return View("Index", dt);
        }

        
    }
}

partial view code

@model System.Data.DataTable
@using System.Data;
<div id="queryResult">


    <div>

        <table cellpadding="10" border="1">
            <thead>
                <tr>
                    @foreach (DataColumn col in Model.Columns)
                    {
                        <th>@col.ColumnName</th>

                    }
                </tr>
            </thead>
            <tbody>

                @foreach (DataRow row in Model.Rows)
                {
                    <tr>

                        @foreach (DataColumn col in Model.Columns)
                        {
                            <td>@row[col.ColumnName]</td>

                        }
                    </tr>

                }


            </tbody>

Index.cshtml

@model System.Data.DataTable
@using System.Data;

@{
    ViewBag.Title = "Index";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

<h2>Index</h2>

@using(Html.BeginForm("ViewResult","home",FormMethod.Post))
{
    @Html.TextArea("txtquery");
    @Html.TextBox("btnsubmit", "submit", new { type = "submit" });
}


<div>
    @Html.RenderPartial("~/Views/Shared/_showOp.cshtml",dt)
</div>

What I have tried:

i have shared the above code and I'm unable to call the partial view.

please help me