protected void OverallPlanSales()
{
BookingDetails bd = new BookingDetails();
List <string> listYears = new List <string>()
{
"2020", "2021", "2022"
};
List <int> totalSales = bd.GetTotalSales(listYears);
Series series = Chart1.Series["SeriesStats"];
for (int i = 0; i < listYears.Count; i++)
{
series.Points.AddXY(listYears[i], totalSales[i]);
}
}
