Subtracting Dates 1

[JJOHNS]

I'm creating a little calculator in VB.NET. The formula I'm calculating is different when the startdate entered by the user is over 90 days ago, than when it is less than 90 days ago. So, I need a way to determine if the date they entered is more than 90 days ago.

user enters: StartDate.

If Today - StartDate > 90 Then
This happens
Else
This happens
End

Can someone help me with the math that compares the dates?

Thanks

 

[TipGiver]

Have a look at the following:

        Dim _now As DateTime = Now
        Dim _startDate As DateTime = #7/25/2006#

        Dim days As Integer = DateDiff(DateInterval.Day, _now, _startDate)
        If days > 90 Then
            ' This happens
        Else
            ' This happens
        End If

Enjoy!

 

[JJOHNS]

Worked great! Thanks

 

[earthandfire]

TipGiver, I'm surprised to see that you work with Option Strict OFF.

Try your example with Option Strict ON and it wont compile.


Also rather than DateDiff, what about:

[tt]Dim days As Integer = _startDate.Subtract(_now).Days[/tt]


Hope this helps.