how to save uploaded file name in database using mvc 4?

See more:

MVC4

SQL-Server-2014

code in business layer :

FilesEntity files = new FilesEntity();
        public void SaveFileName(FilesEntity filentity)
        {
            string cs = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
            using (SqlConnection con = new SqlConnection(cs))
            {
                SqlCommand cmd = new SqlCommand("spnotaryfiles", con);
                cmd.Parameters.AddWithValue("@Filename", files.filename);
                cmd.CommandType = CommandType.StoredProcedure;
                con.Open();
                cmd.ExecuteNonQuery();
            }
        }

Code in COntroller :

[HttpPost]
        public ActionResult Index()
        {
            
            {
                FilesEntity entity = new FilesEntity();
                string path = Path.Combine(Server.MapPath("~/Images"),
                Path.GetFileName(entity.filename));
                
                DataAccess da = new DataAccess();
                da.SaveFileName(entity);
            }
            
            return View();
        }

COde in view

@using (Html.BeginForm("Index", "File", FormMethod.Post, new { enctype = "multipart/form-data" }))
{

    <input type="file" name="fileUpload" /><br />
    <input type="submit" name="Submit" id="Submit" value="Upload" />
  
}

please help me to save the file name in database. thanks in advance