ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Error 13: The label already exists
Splitting Business logic / UI code
During the development cycle of an application, the code that is specific to the interface (UI) and the code that is specific to the business logic (access to databases, etc.) are often "mixed"...
Geolocation functions/GPS
The following functions are used to handle geolocation data and to control GPS devices......
Mechanism of specific exceptions
A process of specific exception is used to process a risky code (which means a code that could trigger an exception)......
Error 11: The label is unknown
Error 3: The string has no final "
BLOCK
The <BLOCK> keyword is used in the code editor to declare custom blocks of code. These blocks of code are used to highlight the different steps of an algorithm and to group the declarations of variables or members.
SQLCode (Property)
The SQLCode code property is used to get the SQL code of a query created with the query editor (".WDR" file).
Instant spotting of modified code/current code
The modified lines of code are immediately visible......
Warning 18: Loop without potential end
Including the code
You want to include your code lines in a condition, in a structure, ......
Warning 36: No BREAK, RETURN or RESULT was detected in the code of the loop
The Chart control: Characteristics in the editor
Regardless of the type of chart displayed in the Chart control, all its characteristics can be configured via its description window......
Handling external JavaScript objects from WLanguage
The WLanguage in "Browser" mode is used to interface with the Web APIs such as the ones proposed by Google or Yahoo......
Handling the report blocks through programming
Each report block is associated with different events......
Code editor: Various operations
The code editor is the editor where the developers spend most of their time. This help page presents a series of useful options for the most common actions ......
Error 202: The method already has an access attribute (public, protected or private)
Handling an OLE control by programming
WINDEV enables you to handle an OLE control by programming......
Transactions in SQL
Starting with version 21, you can manage transactions in SQL code......
Managing the critical sections
Semaphores are used to limit the simultaneous execution of a code (procedure, line of code, etc....
Positioning marks in the code
The positioning marks are used to "tag" specific lines of code......
10. UMC: User Macro-Code
Handling a Carousel control through programming
WINDEV allows you to handle a Carousel control through programming......
Automatic procedures
The programming of timers, threads and delayed procedures is now automatically managed by the environment......
1. Testing a site: Elements to be tested
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