ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Managing dates and times
WINDEV, WEBDEV and WINDEV Mobile propose several methods for managing dates and times in your applications...
The Preset control
The "Preset" control is used to display the frequently used controls without programming......
The indexed controls
A control is an indexed control if it contains several controls with the same name......
Time (Type of variable)
The Time type is used to easily handle the times...
TimeToString (Function)
Converts a time to a string in the specified format.
The "Column" charts
The data is interpreted as "columns" whose height is proportional to the value of data......
DateDifference (Function)
Calculates the number of days between two dates.
DatePicker (Function)
Opens the system date picker.
Age (Function)
Returns the age according to the date of birth.
Background tasks
Continuing to run a process when the application is in background is very useful on mobile......
StringToDate (Function)
Converts a date in character string format to a date in YYYYMMDD format.
LastDayOfMonth (Function)
Returns the date of the last day for the specified month.
<DateTime type>.ToEpoch (Function)
Converts a local datetime to Epoch format (number of time units since 01/01/1970 at 00h00 UTC)....
LeapYear (Function)
Indicates whether the specified year is a leap year or not.
StringToDuration (Function)
Converts a duration in character string format to a duration that can be used by a Duration variable.
CurrentDay( Function)
Returns the number of the current day in the current month.
TimePicker (Function)
Opens the system time picker.
Maintaining the files of Control Centers
When using a database, you may have to perform maintenance operations on the data files......
DateTimeToEpoch (Function)
Converts a local datetime to Epoch format (number of time units since 01/01/1970 at 00h00 UTC)....
TimeToInteger (Function)
Converts a time to an integer.
TimeDifference (Function)
Calculates the difference between two times in hundredths of a second.
Yesterday (Function)
Returns the date of the day preceding the current day or a given date.
Tomorrow (Function)
Returns the date of the day following the current day or a given date.
DateSys (Function)
Returns or modifies the system date (current date defined on the current computer).
LastDayOfYear (Function)
Returns the date of the last day of the year.
Easter (Function)
Returns the date of Easter for the specified year according to the western Christian calendar.
1
2
3
4
5
6
305
>