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New WINDEV, WEBDEV, WINDEV Mobile 24 feature!
  • Characteristics of the weeks
  • Special case
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Stored procedures
Returns the number of the week corresponding to the specified date.
Versions 16 and later
Universal Windows 10 App This function is now available for Windows Phone applications.
New in version 16
Universal Windows 10 App This function is now available for Windows Phone applications.
Universal Windows 10 App This function is now available for Windows Phone applications.
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
MyDate is Date = Today()
MyDate.ToWeekNumber()
Syntax
<Result> = <Date>.ToWeekNumber()
<Result>: Integer
Number of the week (between 0 and 53) corresponding to the specified date.
<Date>: Date variable or DateTime variable
Date to use. This date can correspond to:
  • a Date variable.
  • Versions 24 and later
    a DateTime variable. In this case, only the date is taken into account.
    New in version 24
    a DateTime variable. In this case, only the date is taken into account.
    a DateTime variable. In this case, only the date is taken into account.
Remarks

Characteristics of the weeks

A weeks starts on a Monday and ends on a Sunday.
For the first days of the year:
  • If the first day of the year is a Friday, Saturday or Sunday, the week number will be 0. The week #1 will correspond to the first Monday of the year.
  • If the first day of the year is a Monday, Tuesday, Wednesday or Thursday, the week number will be 1.
  • The days found between the Sunday of the 52nd week and January 1st are part of week 53.
Note: To get a week number corresponding to the ISO 8601 standard, use WeekNumber.

Special case

The storage format allows you to store dates from 01/01/0001 to 12/31/9999.
The calculations performed on dates by the WLanguage functions or by the WLanguage properties are accurate from January 1st 1583.
Component : wd240std.dll
Minimum version required
  • Version 24
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