ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Data Source (Variable type)
A Data Source variable is used to describe a temporary data source (query, view, alias, etc.).
<Source>.DataSourceKnown (Function)
Determines if a data source has been initialized.
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...
HDataSourceKnown (Function)
Determines if a data source has been initialized.
SQLListSource (Function)
Lists the data sources declared on a local site.
HCreation (Function)
Creates an empty data file (".FIC" extension) with the index file and the memo file if necessary.
GDPR: Overview
GDPR (General Data Protection Regulation) will replace "Data Protection Directive" on 25th May 2018......
WDMap: Adding, modifying and deleting the records of a data file
WDMap allows you to perform simple operations (addition, modification or deletion) on the records found in a data file......
WDBal messaging: Overview
WDBal is a secure messaging, included in WINDEV, WEBDEV and WINDEV Mobile......
HReadLast (Function)
Sets the position on the last record of a data file according to a browse item.
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......
HRecordDate (Function)
Returns the date and time of the last write operation performed on a record in an HFSQL file (Classic or Client/Server)....
14. Controls in practice
GDPR: Concrete solutions
GDPR: General Data Protection Regulation...
SourceFromWindow (Function)
Automatically updates: the values of a data file's items in memory with the values from the controls in the window. the value of the WLanguage variables with the value of the window controls. This function is also available for WEBDEV pages....
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.
Comparing the project messages
The comparison between source and target text helps you find translation errors......
WDHFDiff - Use
WDHFDiff is used to compare......
HReadNext (Function)
Sets the position on the next data file record according to a browse item.
HErrorModification (Function)
Used to: return the value of a record item if a modification conflict occurs. check if a modification conflict occurred....
HExportXLS (Function)
Exports records from a data file (HFSQL or OLE DB), view or query to an Excel file (XLSX).
HExportCSV (Function)
Exports the records found in a data file (HFSQL or OLE DB), a view or a query to a CSV file.
WDHFDiff: Overview
WDHFDiff is a tool used to compare HFSQL data files......
Modifying an SVG image (XML functions)
SVG (Scalable Vector Graphics) is a vector image format......
Format (Property)
The Format property is used to define the data format of a data file.
The "Scatter" charts
A scatter chart (XY) represents the relationship between two numeric values in two series of data......
HForward (Function)
Moves several records forward from the current position in the data file, according to a specified item.
Operations performed on a data file (Data model editor)
The main operations that can be performed on a data file from the data model editor are as follows......
HBackward (Function)
Moves backward several records from the current position in the data file, according to a specified item.