Date Calculation

[Issac Gomez]

IN VB.Net, you can use the DateDiff method to calculate the difference between 2 days. How do you do this in C#? I want to find the number of days between 2 dates. I there a 0 days, then I want to know the number of hours and minutes between 2 dates

I see there is a method for the DateTime object which allows me to subtract, but it requires a TimeSpan object, andI am not quite shure how to create this correctly. I presume it goes something like this..
daysLeft = _PM_Cutoff_Date .Subtract(new TimeSpan( ?, ?, ?, ?) where ? = int of Days, hours, minutes and seconds

Can someone clear up my confusion on how to do this calculation

Thanks a bunch!!

[Cowboy \(Gregory A. Beamer\) [MVP]]

DateTime dt = Convert.ToDateT ime("1/1/2004");
DateTime dt1 = Convert.ToDateT ime("3/1/2004");

TimeSpan ts = dt1.Subtract(dt );

Note, you can use compare to see which date is larger, if either could be
larger.

You also have this static method:

TimeSpan ts = System.DateTime .op_Subtraction (dt, dt1);
--
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

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"Issac Gomez" <an*******@disc ussions.microso ft.com> wrote in message
news:2B******** *************** ***********@mic rosoft.com...

IN VB.Net, you can use the DateDiff method to calculate the difference between 2 days. How do you do this in C#? I want to find the number of
days between 2 dates. I there a 0 days, then I want to know the number of
hours and minutes between 2 dates.
I see there is a method for the DateTime object which allows me to subtract, but it requires a TimeSpan object, andI am not quite shure how to
create this correctly. I presume it goes something like this... daysLeft = _PM_Cutoff_Date .Subtract(new TimeSpan( ?, ?, ?, ?) where ? = int of Days, hours, minutes and seconds.
Can someone clear up my confusion on how to do this calculation?

Thanks a bunch!!

[mikeb]

Issac Gomez wrote:

IN VB.Net, you can use the DateDiff method to calculate the difference between 2 days. How do you do this in C#? I want to find the number of days between 2 dates. I there a 0 days, then I want to know the number of hours and minutes between 2 dates.

I see there is a method for the DateTime object which allows me to subtract, but it requires a TimeSpan object, andI am not quite shure how to create this correctly. I presume it goes something like this...
daysLeft = _PM_Cutoff_Date .Subtract(new TimeSpan( ?, ?, ?, ?) where ? = int of Days, hours, minutes and seconds.

Can someone clear up my confusion on how to do this calculation?

You can also subtract 2 DateTimes to get a TimeSpan representing the
difference:

Dim daysLeft as TimeSpan

' remove any clock-time components from the cutoff date
' so subtracting DateTime.Today doesn't result in
' a 'fractional' TimeSpan

Dim normalizedCutof f as new DateTime( _PM_Cutoff_Date .Year, _
_PM_Cutoff_Date .Month, _
_PM_Cutoff_Date .Day)

daysLeft = normalizedCutof f.Subtract( DateTime.Today)

Console.WriteLi ne( "Days left: {0}", daysLeft.TotalD ays)

--
mikeb