public void RemoveSales(SalesRecord sr)
{
SalesRecordy.Remove(sr);
}
public double TotalSales(DateTime inital, DateTime final)
{
return(SalesRecordy.Where(sr => sr.Date >= inital && sr.Date <= final).Sum(sr => sr.Amount)); // caulcula o total de vendas de um vendedor pelo periodo
}
public void AddSales(SalesRecord sr)
{
SalesRecordy.Add(sr);
}