August 2001
Intermediate to advanced
656 pages
18h 5m
English
Content preview from VB .NET Language in a NutshellBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Name
Day Function
Class
Microsoft.VisualBasic.DateAndTime
Syntax
Day(datevalue)-
datevalue Use: Required
Data Type: Date or literal date
Return Value
An Integer from 1 to 31, representing the day of the month
Description
Returns an Integer ranging from 1 to 31, representing the day of the
month of datevalue
Rules at a Glance
The range of datevalue is 1/1/1 to
12/31/9999.
Programming Tips and Gotchas
When working with dates, always check that a date is valid using the
IsDatefunction prior to passing it as a function parameter.With
OptionStrictOn, you must first convertdatevalueto a Date data type before passing it to the Day function. You can use the CDate function for thi s purpose.If the day portion of
datevalueis outside of its valid range, the function regenerates runtime error 13, “Type mismatch.” This is also true if the day and month portion ofdatevalueis 2/29 for a non-leap year.To return the day of the week, use the
WeekDayfunction.
See Also
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.