protected void Page_Load(object sender, EventArgs e)
        {
            var logic = new Portfolio_Logic();

            if (Request["Id"] != null)
            {
                int Id = Convert.ToInt32(Request["Id"]);
                Response.Write(logic.DeletePortfolio(Id));
            }
        }
 protected void Page_Load(object sender, EventArgs e)
 {
     logic  = new Portfolio_Logic();
     Models = logic.GetPortfolio();
 }