ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

HTMLOnErrorJS (Function)
Specifies the procedure to call if an error occurs while executing JavaScript code in an HTML Display control.
<HTML Display control>.OnErrorJS (Function)
Specifies the procedure to call if an error occurs while executing JavaScript code in an HTML Display control.
Error 1010: The member of the class is constant
2025 novelties brochure: Common novelties
What's new in WINDEV/WEBDEV/WINDEV Mobile 2025 in the What's new 2025 brochure....
Writing an email: the available methods
This help page presents the methods for writing an email....
How to sort the result of a query?
This help page explains how to create a sort query with the query editor....
Input masks and display masks
WINDEV, WEBDEV and WINDEV Mobile propose two types of masks......
WDLog: Restoring HFSQL data files
WDLog is used to restore the data files saved by WDLog......
Creating an interactive diagram
The Diagram Editor control allows end users to create and edit diagrams......
Pivot Table control in a report
The report editor allows you to create "Crosstab" reports......
SysCacheExternalStorage (Function)
Returns the path of directory that will be used to store the data in cache on the external storage space of application.
fCacheDir (Function)
Returns the path of directory that will be used to store the data in cache on the internal storage space of application.
17. WLanguage: a simple and powerful language
Repairing the database schema
In some cases, an error message may appear when opening the database schema linked to a project......
WDLog: Saving HFSQL data files
WDLog allows you to save all the HFSQL data files used by a WINDEV or WEBDEV application......
MCU: Implementing and managing user macro codes
No matter how dexterous a development team may be, the end user of an application will always want to perform an action that is not intended......
The Repositionable Note control
The Repositionable Note control allows you to include the famous yellow sticker in your applications......
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"...