DateTime Subtract methods

Hello,

The DateTime class has AddMonth, AddDay, etc members; I had a use for it to have SubtractDay, SubtractMonth members as well. That would be a nice feature to have. I have a process that has to archive one month or more old data, and it would be nice to be able to use this method rather than using a special method of mine.

Thanks.

Re: DateTime Subtract methods

You mean using AddDay(-1) for subtraction isn't an option for you? Just curious since this question has come up in the past.

Re: DateTime Subtract methods

Hey,

As an alternative, I suggested storing 30 days worth, rather than one days worth; but if i'm on feb 28th; I would only want data from jan 31 to feb 28, not jan 28 to feb 28 for one month.

Thanks.

Re: DateTime Subtract methods

You are looking for the Month/Year version of Time Interval and it is already there, the first link covers what you are looking for. February being 28/29 is the reason there are two Time Interval Day/Hours and Month/Year. Try the links below for details. Hope this helps.

http://msdn2.microsoft.com/en-us/library/system.datetime.op_subtraction(VS.80).aspx

http://msdn2.microsoft.com/en-us/library/system.datetime.subtract(VS.80).aspx