ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

1. Implementing a Client/Server database
WEBDEV Tutorial - Managing an HFSQL Client/Server database Lesson 1 - Implementing a Client/Server database - 10 min...
Message text file format
The text files created by WDMSG use a specific format......
Dynamic instantiation of a .NET object
A .NET object can be dynamically associated with a .NET class, we talk of dynamic instantiation of object....
Table control based on a variable
A Table control based on a variable is a Table control whose columns are bound to the elements of an Array variable, to the members of a class or to the elements of an advanced variable (e.g., xlsDocument)......
HCompareItem (Function)
Compares two values by sorting them according to the specified HFSQL index item: all the sort options specified for the item are taken into account (sensitivity to the case, to the punctuation, sort direction, Unicode language, ...).
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....
<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)....
<Source>.CompareItem (Function)
Compares two values by sorting them according to the specified HFSQL index item: all the sort options specified for the item are taken into account (sensitivity to the case, to the punctuation, sort direction, Unicode language, ...).
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....
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)....
HListItem (Function)
Returns the list of items: found in a data file ( a query or a view) known to the HFSQL engine. The data files defined by HDeclare, HDeclareExternal and HDescribeFile are taken into account. found in a Record variable....
Parameters of the procedure used by HReindexAsynchronous
WLanguage procedure ("callback") called by HReindexAsynchronous for each HFSQL Client/Server data file reindexed. This new function is available from WINDEV Suite SaaS 2025 - Update 2....
SQLite: Programming with HFSQL functions
To use an SQLite database with Native Connector (also called Native Access), the structure of SQLite tables must be imported into the data model editor....
External language: Programming in Fortran
We are going to call the elements developed in WINDEV (project, windows, analysis, ......
SQL commands available in an SQL query
WINDEV allows you to easily run queries in SQL code......
NbKeyItem (Property)
The NbKeyItem property is used to get the total number of key items (including composite keys) in a record of: a file described in the data model editor, a file described through programming, an HFSQL view, a query....
Replication of mobile data (Android or iOS)
The assisted universal replication is available in Android and iOS......
Native Oracle Connector: Programming with HFSQL functions
To use an Oracle database with the Native Connector, the structure of ORACLE tables must be imported into the WINDEV or WEBDEV analysis......
HFSQL Control Center: Creating and executing a query
The HFSQL Control Center allows you to create a query based on the data files of the database currently displayed in the Control Center......
Telemetry: Installing the server
To use the telemetry, you must install on a computer......
Handling a dynamic programmatically
WINDEV allows you to handle Dynamic Tab controls with the TabXXX functions and with multiple WLanguage properties......
Server triggers
Server triggers are stored procedures executed by the server before or after a write operation performed on a database file......
HConnect (Function)
Redefines one or more connection parameters via Native Connector (Access, SQL Server, MySQL or Oracle) or via an OLE DB access on a specific table or set of tables.
Native DB2 Connector: Programming with HFSQL functions
To use a DB2 database with Native Connector, the structure of DB2 tables must be imported into the WINDEV or WEBDEV analysis......