You do not recognize my public method in my aspx form

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using Negocio;

namespace Presentacion
{
    public partial class frmCatalogo : System.Web.UI.Page
    {

        private ProductoNeg pro;
        private SqlDataReader registro;

        protected void Page_Load(object sender, EventArgs e)
        {

            this.pro = new ProductoNeg();
            this.registro = this.pro.getProductos();
        }

        public SqlDataReader getRegistro()
        {
            return this.registro;
        }
    }
}