private DataTable GetSerMonth()
        {
            var dbCon = DBConnection.Instance();

            dbCon.IsConnect();
            MySqlCommand cmd = new MySqlCommand();

            cmd.Connection  = dbCon.Connection;
            cmd.CommandType = CommandType.Text;

            cmd.CommandText = " SELECT        serviceName, SUM(total_discounted_service) AS Expr1 FROM sales_report_service_view WHERE(MONTHNAME(_date) = '" + ((ComboBoxItem)ComboBoxMonth.SelectedItem).Content.ToString() + "') group by servicename ";
            DatasetReportSales.services_tDataTable dSItem = new DatasetReportSales.services_tDataTable();

            MySqlDataAdapter mySqlDa = new MySqlDataAdapter(cmd);

            mySqlDa.Fill(dSItem);

            return(dSItem);
        }
        private DataTable GetSerRange()
        {
            var dbCon = DBConnection.Instance();

            dbCon.IsConnect();
            MySqlCommand cmd = new MySqlCommand();

            cmd.Connection  = dbCon.Connection;
            cmd.CommandType = CommandType.Text;

            cmd.CommandText = " SELECT        serviceName, SUM(total_discounted_service) AS Expr1 FROM sales_report_service_view WHERE(_date BETWEEN  '" + DateStart.SelectedDate.Value.ToString("yyyy-MM-dd") + "' AND '" + DateEnd.SelectedDate.Value.ToString("yyyy-MM-dd") + "') group by servicename ";

            DatasetReportSales.services_tDataTable dSItem = new DatasetReportSales.services_tDataTable();

            MySqlDataAdapter mySqlDa = new MySqlDataAdapter(cmd);

            mySqlDa.Fill(dSItem);

            return(dSItem);
        }
        private DataTable GetSalesSer()
        {
            var dbCon = DBConnection.Instance();

            dbCon.IsConnect();
            MySqlCommand cmd = new MySqlCommand();

            cmd.Connection  = dbCon.Connection;
            cmd.CommandType = CommandType.Text;


            cmd.CommandText = "SELECT        serviceName, SUM(total_discounted_service) AS Expr1 FROM sales_report_service_view GROUP BY serviceName ";

            DatasetReportSales.services_tDataTable dSItem = new DatasetReportSales.services_tDataTable();

            MySqlDataAdapter mySqlDa = new MySqlDataAdapter(cmd);

            mySqlDa.Fill(dSItem);

            return(dSItem);
        }