CCGrid grid1 = new CCGrid();
grid1.DataSource = GetDataView();
grid1.DataBind();
PlaceHolder1.Controls.Add(grid1);

namespace Test
{
    public class CCGridColumnTemplate : ITemplate
    {
        public void InstantiateIn(Control container) 
        {

            Button btnSelect = new Button();
            btnSelect.Height = 15;
            btnSelect.Width = 15;
            btnSelect.CommandName = "Select";
            btnSelect.Text = " ";
            container.Controls.Add(btnSelect);
        }
    }

    /// <summary>
    /// Summary description for CCGrid.
    /// </summary>
    [DefaultProperty("Text"), 
    ToolboxData("<{0}:CCGrid runat=server></{0}:CCGrid>")]
    public class CCGrid : DataGrid
    {
        /// <summary>
        /// Konstruktor DataGridu: nastavim zakladni vlastnosti
        /// vzhledu a potrebnych sloupcu
        /// </summary>
        public CCGrid()
        {
            //Page.Trace.Write("CCGrid","CCGrid - Start");
            AlternatingItemStyle.BackColor = Color.WhiteSmoke;
            GridLines = GridLines.Both;
            BorderColor = Color.Gray;
            ShowHeader = true;
            AutoGenerateColumns = true;
            SelectedItemStyle.BackColor = Color.Yellow;
            BorderWidth = Unit.Pixel(2);

            SelectedItemStyle.BackColor = Color.Aqua;

            Init +=new EventHandler(OnInit);

            //Page.Trace.Write("CCGrid - End");
        }

        public void OnInit (Object sender, EventArgs e)
        {
//            Page.Trace.Write("CCGrid","OnInit - Start");
            AddSelectColumn();
//            Page.Trace.Write("OnInit - End");
        }


            public void AddSelectColumn()
        {
//            Page.Trace.Write("AddSelectColumn - Start");
            //Add frst Column
            TemplateColumn selectColumn = new TemplateColumn();
                selectColumn.ItemTemplate = new CCGridColumnTemplate();
            Columns.AddAt(0, selectColumn);

        }
    }
}