private static double setGradiant(ServiceReference1.reportDonation first, ServiceReference1.reportDonation last)
{
DateTime d1 = Convert.ToDateTime(first.Date), d2 = Convert.ToDateTime(last.Date);
TimeSpan t = d2 - d1;
return(t.TotalDays / (last.Amount - first.Amount));
}
public static ServiceReference1.reportDonation[] prodictValue(ServiceReference1.reportDonation[] values, int numD)
{
int total = values.Count() + numD;
ServiceReference1.reportDonation[] ret = new ServiceReference1.reportDonation[total];
for (int i = 0; i < values.Count(); i++)
{
ret[i] = new ServiceReference1.reportDonation();
ret[i].Amount = values[i].Amount;
ret[i].Date = values[i].Date;
}
for (int i = values.Count(); i < total; i++)
{
ServiceReference1.reportDonation pd = ret[i - 1];
DateTime d = Convert.ToDateTime(pd.Date);
ret[i] = new ServiceReference1.reportDonation();
double pwer = Math.Pow(1 + setGradiant(ret[i - values.Count()], ret[1 + (i - values.Count())]), i);
ret[i].Amount = ret[0].Amount * pwer;
d = d.AddDays(3);
ret[i].Date = d.ToShortDateString();
}
return(ret);
}
