asked on

C# subtract 1 day from current day only when weekdays

I have this line which subtracts 1 day from the current date (to populate a textbox):

DateTime.Now.AddDays(-1).ToShortDateString();

How can I do the same but have it ignore weekend days? for example, on monday it would subtract 1 day but skip over sunday and saturday to return the value for friday.

In other words, how can I subtract 1 weekday from the current day.

NauticalNonsense

DateTime dateTime = DateTime.Now;
DateTime prePopulate = new DateTime();
if (dateTime.DayOfWeek == System.DayOfWeek.Monday)
prePopulate = dateTime.AddDays(-3);
else
prePopulate = dateTime.AddDays(-1);

What are you doing on Saturday and Sunday? Or are you assuming nobody uses this on Sunday?

ASKER CERTIFIED SOLUTION

Mike Tomlinson

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NauticalNonsense

Pretty sneaky, sis.

RustyZ32

ASKER

Ok, how can I set a textbox value using these?

my old line is as follows:

TBenddate.Text = DateTime.Now.AddDays(-1).ToShortDateString();

I've tried a few different ways and can't seem to get the syntax correct.

SOLUTION

NauticalNonsense

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Mike Tomlinson

*Tag Team* Thanks Nautical. =)

RustyZ32

ASKER

that worked! I changed the values to monday and sunday to test, worked like a charm.

thanks to you both.

NauticalNonsense

Your loop was adorable... love it!
Cheers!