ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Overview of OOP (Object Oriented Programming)
The object-oriented programming (called "OOP") is a programming paradigm in which the programs are organized as sets of objects......
Events associated with Button controls
List of events associated with Button controls...
JSON
JSON (JavaScript Object Notation - Object Notation from JavaScript) is a lightweight data exchange format......
Using the advanced types
The advanced types (XLS variables, ggl variables, ......
Events associated with Bar Code controls
List of events associated with Bar Code controls...
Events associated with List Box controls
List of events associated with List Box controls...
The "Internal report" control
The "Internal report" controls are used to print several reports (secondary reports) in a single report (main report) without programming......
SCM: History search
History search allows you to perform an advanced search in the history of operations performed in the SCM......
Handling a Popup control through programming
The popup being a control of the page, you have the ability to access: the page controls from the popup. the popup controls from the page....
Gesture variable
The Gesture variable is used to retrieve the gesture parameters (swipe)......
HFSQL Client/Server: Backing up databases
Like for any database, backups of your HFSQL Client/Server databases must be performed on a regular basis......
WDInst: configuring the characteristics of the file setup
WDInst is used to configure the installation of files......
Distributing Reports & Queries
This help page presents the operations that must be performed in order for a WINDEV application to be handled by Reports & Queries......
Flexbox example: automatic control layout
Flexbox controls allow arranging controls exactly as desired when the browser is resized......
Error 2: Incomplete line
How to fill a TreeView Table control?
This help page explains how to populate a TreeView Table control programmatically....
Binding a Radio Button control to an item
A Radio Button control can be bound to an item in a data file, query, etc....
Managing synchronization
For each action performed in a page, the mechanism for page synchronization automatically checks the synchronization......
License agreement - HFSQL Client/Server
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries......