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...
<Source>.RetrieveItem (Function)
Returns the content of an item found in the current record (in the data file, view, query, ...).
HFirst (Function)
Sets the position on the first record of a data file according to the specified browse item.
HRetrieveItem (Function)
Returns the content of an item found in the current record (in the data file, view, query, ...).
<Source>.First (Function)
Sets the position on the first record of a data file according to the specified browse item.
The tables in a report
In a report, a table includes a set of controls called "Table cells"......
Constants for managing errors and exceptions
List of constants used by the functions for managing errors and exceptions....
Query: Displaying the records corresponding to a given period
When a "Date" item is found in the query, you have the ability to only select the records corresponding to a given period......
15. Cookies: information stored on the computer of the Web user
Indicates the status of the media file played in the Multimedia control....
HImportJSON (Function)
Imports a JSON file into a data file in HFSQL Classic format (data file described in the data model editor or declared by HDeclare, HDeclareExternal or HDescribeFile).
<Source>.ImportJSON (Function)
Imports a JSON file into a data file in HFSQL Classic format (data file described in the data model editor or declared by HDeclare, HDeclareExternal or HDescribeFile).
Operations performed on a data file (Data model editor)
The main operations that can be performed on a data file from the data model editor are as follows......
HFSQL Control Center: HFSQL Client/Server backups
The HFSQL Control Center is used to manage the backups of HFSQL Client/Server tables......
TmeLine control linked to a data file or variable
You can create TimeLine controls directly linked to the data....
Managing the Unicode format in the HFSQL files
The analysis proposes two types of Unicode items......
WEBDEV 2025: New WLanguage features
In version 2025, new functions, properties and data types have been introduced and some have been improved, ......
<Source>.LockFile (Function)
Locks a data file and restricts the access to this data file for all other sites or applications.
DataProcedure (Property)
The property DataProcedure property is used to specify the name of the WLanguage procedure called as data is received.
How to populate a TreeView control using a data file?
By default, the TreeView control cannot automatically display the data coming from a data file......
Materialized view
...A materialized view is a physical data source defined by an SQL query....
<Source>.ImportXML (Function)
Imports an XML file into an HFSQL Classic or Client/Server data file (data file described in the data model editor or declared by HDeclare, HDeclareExternal or HDescribeFile)....
HImportXML (Function)
Imports an XML file into an HFSQL Classic or Client/Server data file (data file described in the data model editor or declared by HDeclare, HDeclareExternal or HDescribeFile)....
WDInst: Configuring the automatic data file modification
The automatic data file modification updates the description of data files on user computers......
Configuring the automatic modification of data files
The automatic data file modification updates the description of data files on user computers......