ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

How to populate a TreeView control using a data file?
By default, the TreeView control cannot automatically display the data coming from a data file......
hdfsStatus (Type of variable)
The hdfsStatus type is used to define the advanced characteristics regarding the status of an element (file, directory, link) in the Hadoop file system.
<Source>.MigrateLinkedCompositeKey (Function)
Migrates the values of the linked composite keys coming from a file in Hyper File 5.5 format to the HFSQL Classic format.
MySource (Reserved word)
MySource is used to handle the current data source (file, view or query) associated with a report or with a table based on a data file...
CtDescribedPassword (Property)
The CtDescribedPassword property allows you to set the password used to open the data file in an OLE DB connection (file defined in the code only).
Starting WDOptimizer in a command line
HMigrateLinkedCompositeKey (Function)
Migrates the values of the linked composite keys coming from a file in Hyper File 5.5 format to the HFSQL Classic format.
Test of a query
The query editor allows you to run the test of query result......
fCompress (Function)
Compresses a file.
Composite keys
A composite key is a key item containing several other items......
SemaphoreEnd (Function)
Allows one or more threads to exit from the area protected by the semaphore.
6. Editing a page: zoning mode
FTPDateTime (Function)
Returns the different dates and times (creation, modification or access) associated with a file found on an FTP server (File Transfer Protocol).
hdfsRights (Type of variable)
The hdfsRights type is used to define the advanced characteristics regarding the access rights to an element (file, link, directory) of the Hadoop file system.
spHash (Property)
The spHash property is used to: Get the algorithm used for salting an item of type "Password". This property can be used for items of type "Password" defined in the data model editor or programmatically. Set the algorithm used for salting (only for "Password" items described programmatically)....
Skin template
WINDEV, WEBDEV and WINDEV Mobile allow you to customize the interface of your applications via several preset interfaces......
The UML model
The main objective of a development team is to create optimized applications, capable of satisfying the ever-changing needs of their users......
How to create an SQL query with a calculation formula?
This help page explains how to create a query with a calculation formula with the query editor....
ScreenCastAllowed (Property)
The ScreenCastAllowed property is used to: find out whether the user can cast the content displayed in the Multimedia control to an external device (compatible with AirPlay), allow or prevent the user from casting the content displayed in the Multimedia control to an external device (compatible with AirPlay)....
Manipulating controls in a page
The different operations that can be performed on the page controls are as follows......
<Table>.SelectToFile (Function)
Positions on the data file record corresponding to a row selected in the multi-selection Table control based on a data file.
<Source>.Add (Function)
Add: the record found in memory into the data file (query or view). the record found in a Record variable into the data file (query or view)....
Configuring the automatic modification of data files
The automatic data file modification updates the description of data files on user computers......
WDInst: Configuring the automatic data file modification
The automatic data file modification updates the description of data files on user computers......
HAdd (Function)
Adds: the record found in memory into the data file (query or view). the record found in a Record variable into the data file (query or view)....