Gridview class object

Given a gridview class file as follows:

using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI.WebControls;
using System.Web.UI;
using System.ComponentModel;
using System.Collections;
using System.Collections.Specialized;
using System.Web;

namespace RealWorld.Grids
{
    /// <summary>
    /// BulkEditGridView allows users to edit multiple rows of a gridview at once, and have them
    /// all saved.
    /// </summary>
    [
    DefaultEvent("SelectedIndexChanged"),
    Designer("System.Web.UI.Design.WebControls.GridViewDesigner, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"),
    ControlValueProperty("SelectedValue"),
    ]
    public class BulkEditGridView : System.Web.UI.WebControls.GridView
    {
        //key for the RowInserting event handler list
        public static readonly object RowInsertingEvent = new object();

        private List<int> dirtyRows = new List<int>();
        private List<int> newRows = new List<int>();

        /// <summary>
        /// Default Constructor
        /// </summary>
        public BulkEditGridView()
        {
        }

        /// <summary>
        /// Modifies the creation of the row to set all rows as editable.
        /// </summary>
        /// <param name="rowIndex"></param>
        /// <param name="dataSourceIndex"></param>
        /// <param name="rowType"></param>
        /// <param name="rowState"></param>
        /// <returns></returns>
        protected override GridViewRow CreateRow(int rowIndex, int dataSourceIndex, DataControlRowType rowType, DataControlRowState rowState)
        {
            return base.CreateRow(rowIndex, dataSourceIndex, rowType, rowState | DataControlRowState.Edit);
        }
.....

How can it be simply used to instantiate a gridview without adding its DLL into VS2005 toolbox? This is to avoid more work and maintenance. Thanks.