ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Database schema associated with a project
When a WINDEV, WEBDEV or WINDEV Mobile project uses tables, it must be associated with a database schema......
<Window>.FromSource (Function)
Automatically initializes the controls of a window with: the values of the bound items in the current record (loaded in memory) of the HFSL table described in the data model editor. the values of the bound WLanguage variables....
Property of entity/association
In the MERISE methodology, the properties correspond to the characteristics of entities......
SourceToPage (Function)
Automatically updates the controls of a page with: the values of the bound items in the current record (loaded in memory) of the HFSL table described in the data model editor. the values of the bound WLanguage variables....
WindowFromSource (Function)
Automatically initializes the controls of a window with: the values of the bound items in the current record (loaded in memory) of the HFSL table described in the data model editor. the values of the bound WLanguage variables....
<Page>.FromSource (Function)
Automatically updates the controls of a page with: the values of the bound items in the current record (loaded in memory) of the HFSL table described in the data model editor. the values of the bound WLanguage variables....
Key and referential integrity
In a database schema, the "Key" items are also used to manage the consistency of data (called referential integrity)......
WDAdminHF: Managing the data files
The remote HFSQL administrator proposes a full management of the HFSQL Client/Server databases......
How to create an SQL query to count?
This help page explains how to create a count query with the query editor....
Custom synchronization for Table controls based on a data file
In some cases, you may want to use a custom synchronization for Table controls based on a data file......
Native MySQL Connector: Programming with HFSQL functions
To use a MySQL database with the Native Connector (or Native Access), import the structure of MySQL tables into the WINDEV or WEBDEV analysis......
The requested action cannot been performed: the page was not synchronized
Native Progress Connector: Programming with HFSQL functions
To use a Progress database with the Native Connector, you must ......
Break in a Looper control
A break in a Looper control is used to group the data corresponding to one or more arguments......
Modbus
Modbus is a "field" (industrial and/or restricted environments) communication protocol created in 1979......
Synchronizing the database schema with external databases
The database schema must be synchronized with an external database if it uses......
Examples for using the OLE DB provider for HFSQL
Reinitializes the content of an Organization Chart control from its data source (HFSQL data file for example)....
<Source>.CancelDeclaration (Function)
Allows you to: Delete a declaration made previously using HDeclare, HDeclareExternal, HDescriveFile. After this operation, the data file is no longer recognized by the HFSQL engine. Free the resources of a query (after calling HExecuteQuery or HExecuteSQLQuery)....
Data model editor: types of links
Several types of links can be found between the files......
NbItem (Property)
The NbItem property is used to get the total number of items (including composite keys) in a record of: a file described in the data model editor, a file described programmatically, an HFSQL view, a query....
Charset (Property)
The Charset property is used to: Get the character set used by a Font variable. Change the character set used by a Font variable. Get the character set used by an HFSQL data file....
Binding an OLE control to an item
An OLE control can be bound to an item in a data file, query, etc....
HCancelDeclaration (Function)
Used to: Delete a declaration made previously using HDeclare, HDeclareExternal, HDescriveFile. After this operation, the data file is no longer recognized by the HFSQL engine. Free the resources of a query (after calling HExecuteQuery or HExecuteSQLQuery)....
SourceToScreen (Function)
Automatically updates the controls in a window or page with: the values of the bound items in the current record (loaded in memory) of the HFSL table described in the data model editor. the values of the bound WLanguage variables....
Thumbnail (Property)
The Thumbnail property can be used on: the items of an HFSQL data file. For more details, see Thumbnail property on items. the Thumbnail controls (WEBDEV only). For more details, see Thumbnail property on Thumbnail controls....