date - VB.NET Returning sum hours of datetimepicker -

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i have select returns column in datagridview called date , time of datetimepicker , column flag "input" or "output". want return result sum of hours of datetimepicker flag "input" , sum flag " ouput ". me guys?

cheers....

but anyway try sum of time in hours or minutes.

dim firstin string = cdate(dtp1.value.date).tostring("hh:mm") 'try or without cdate. dim firstout string = cdate(dtp2.value.date).tostring("hh:mm") 'try or without cdate.  dim elapsedtime timespan = datetime.parse(firstout).subtract(datetime.parse(firstin)) dim elapsedminutestext string = elapsedtime.minutes.tostring() dim elapsedhrstext string = elapsedtime.hours.tostring * 60 dim totalminute string = cint(elapsedminutestext) + cint(elapsedhrstext) 'then try isert txtbox or message box see result. 'but can minutes , total hours of it.

hope want.


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