Forum Discussion

Copper Contributor

Oct 28, 2023

C# Calculate the next end date of a subscription

I am trying to calculate the next date on which a subscription will end, for example if it started on 03-15-2023 and you cancel it on 09-25-2023, the date that should give results is 10-15-2023 which...

Csharp

cwb3106

Copper Contributor

Oct 29, 2023

Something like the below should work. The AddMonths method handles roll-over to the next month (and year if necessary).

DateOnly newExpirationDate = new DateOnly(cancelDate.Year, cancelDate.Month, startDate.Day);
if (cancelDate.Day > startDate.Day) {
    newExpirationDate = newExpirationDate.AddMonths(1);
}