while deleting throwing error.

I want to delete selected record but it is giving me error--System.Web.HttpException: 'DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'Id'.'

                                   
                                                                                ImageUrl="~/Images/delete.png" Width="50px" Height="50px" CommandArgument='<%#     Eval("Id") %>'
                                        CommandName="Deleterow" />
                                   
                               

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if (e.CommandName == "Deleterow")
            {
                string id = e.CommandArgument.ToString();
                string constr = ConfigurationManager.ConnectionStrings["Q_SS_regnConnectionString1"].ConnectionString;
                SqlConnection con = new SqlConnection(constr);
                con.Open();
                SqlCommand sq = new SqlCommand("DELETE FROM Booking where Id='" + id + "'", con);
                sq.ExecuteNonQuery();
                con.Close();
            }
        }