Add New Empty row to gridview control

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        //This is a Test Condition
        if (e.Row.RowIndex % 2==0)
        {
            GridViewRow g = new GridViewRow(-1,-1, DataControlRowType.DataRow, DataControlRowState.Normal);
            for (int i = 0; i < e.Row.Cells.Count; i++)
            {
                //creating table Cells
                TableCell tCell = new TableCell();
                tCell.Text = "&nbsp;";
                //Add Cells
                g.Cells.Add(tCell);
                //Set Color for Empty Cell
                g.BackColor = System.Drawing.Color.Red;
            }
            Table tbl = e.Row.Parent as Table;
            //add rows
            tbl.Rows.Add(g);
        }
    }

Hi,

Good Today,

This above soultion is working fine for me, but custome is get added in the girdview on the below th actual row.
I need your help on it to make custome row on the top of the grid.
Thanks in Advance

Thanks,
Muni