.net - Automatic days count in vb.net -


i trying find way auto calculated no of days between 2 days.

example: if create entry let's id 500 on 1st july, 2016 , saved it. again, after 15 days, i.e. opened id 500 on 15th july, 2016, value field should show "15" including 15th july. in same way, if open id on 20th july, 2016, should show "20".

i tried datediff function not auto calculating.

me.txtndays.text = datediff(dateinterval.day, now, metxtdtenter.text)

any appreciated.

thank in advance

well there 14 days between 1st july , 15th july.

to calculate can subtract 1 date other result in timespan , find totaldays this:

    dim originaldate date = #2016-07-01# 'get value database     dim testdate date = #2016-07-15# 'this date want compare to. use datetime.now use current date     dim daysbetween = (testdate - originaldate).totaldays '14

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