Convert VB.net DateAdd into C#

Question

I am not able to find the right way to convert DateAdd to C#. I tried Telerik and other tools to convert nothing is correct. All giving compile errors.

dtDueDate = DateAdd(DateInterval.WeekOfYear, intFreqInMonths * intIndex, nextPaymentDueDate)
dtDueDate = DateAdd("m", 1, dtDueDate)
dtDueDate = DateAdd("m", intFreqInMonths * intIndex, nextPaymentDueDate)

Telerik

dtDueDate = DateTime.DateAdd(DateInterval.WeekOfYear, intFreqInMonths * intIndex, nextPaymentDueDate);
dtDueDate = DateTime.DateAdd("m", 1, dtDueDate);
dtDueDate = DateTime.DateAdd("m", intFreqInMonths * intIndex, nextPaymentDueDate);

What did you try? What are the errors? What is the intended result? — David, Sep 10 '20 at 14:22
Possible duplicate of [Converting DateAdd and Format code from VB6 to C#](https://stackoverflow.com/questions/11208859/converting-dateadd-and-format-code-from-vb6-to-c-sharp) — GSerg, Sep 10 '20 at 14:27
Challenge will be to work out what it means to add a "Week of the year" to a date. ;) — Matthew Watson, Sep 10 '20 at 14:27
Just add a reference to `Microsoft.VisualBasic` and you can continue using DateAdd (from C#) — Magnus, Sep 10 '20 at 14:28
Possible duplicate of [How to use DateAdd in C#?](https://stackoverflow.com/q/44448221/11683) — GSerg, Sep 10 '20 at 14:28

score 1 · Answer 1 · answered Sep 10 '20 at 14:26

1

From DateAdd, "m" stands for months, so use DateTime.AddMonths:

dtDueDate = nextPaymentDueDate.AddMonths(intFreqInMonths * intIndex);

answered Sep 10 '20 at 14:26

Idle_Mind

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FYI, the first two lines of code you posted don't matter to the end result of "dtDueDate". – Idle_Mind Sep 10 '20 at 14:28
OP was not asking for end result I think. All should be different samples. – Cetin Basoz Sep 10 '20 at 14:29

score 0 · Answer 2 · answered Sep 10 '20 at 14:27

0

DateTime has methods for that:

dtDueDate = dtDueDate.AddMonths(1);
dtDueDate = nextPaymentDueDate.AddMonths(intFreqInMonths * intIndex);

No idea what DateInterval.WeekOfYear means, you can explain it maybe.

answered Sep 10 '20 at 14:27

Cetin Basoz

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Convert VB.net DateAdd into C#

Telerik

2 Answers2