ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

TraceDeleteAll (Function)
Clears the content of trace window opened in parallel with the current window.
FilterWithBounds (Property)
The FilterWithBounds property is used to determine if bounds have been specified for the filter implemented by HFilter on an HFSQL data file, view or query.
xlsOpen (Function)
Opens an Excel file (xls or xlsx files).
WDInst: grouping the files to install
By default, when generating the setup program, the files to install are compressed in a single archive file ("......
Filtering a data file, a view or a query
A filter is used to define by programming a selection of records corresponding to one or more criteria......
NULL values in HFSQL
WINDEV, WEBDEV and WINDEV Mobile allow you to manage the NULL value in the items of HFSQL data files and for all the other types of accesses (Native, OLE DB, ......
PDFMerge (Function)
Merges several existing PDF files into a single PDF file. The files are merged one after another. The paths of PDF files can be found in an array.
File (Property)
The File property is used to manage the files a functionality applies to.
Management errors specific to Native Connectors
When an HFSQL function fails (returns False for example), the corresponding error number is returned by HError......
WDInst: Configuring the automatic data file modification
The automatic data file modification updates the description of data files on user computers......
Configuring the automatic modification of data files
The automatic data file modification updates the description of data files on user computers......
HChangeLogDir (Function)
Modifies the location of log files corresponding to an HFSQL data file.
Using ODBC on HFSQL Classic via JDBC
The ODBC driver on HFSQL Classic is used to access a HFSQL Classic database from an external database software that supports ODBC accesses......
File Description (Type of variable)
The File Description variable is used to programmatically describe data files.
OLE DB: Required configuration
To handle a database via OLE DB, the following elements must be installed on the development computer and on the deployment computer......
Custom-Folders in the analysis
Several file descriptions can be grouped into a "Custom-Folder"......
<Upload>.DeleteAll (Function)
Clears the list of files to upload: no file will be uploaded on the server.
<Source>.ChangeLogDir (Function)
Modifies the location of log files corresponding to an HFSQL data file.
UploadDeleteAll (Function)
Clears the list of files to upload: no file will be uploaded on the server.
<Source>.Close (Function)
Closes a data file or all the data files opened by the current user: all the corresponding physical data files are closed for the current user.
HClose (Function)
Closes a data file or all the data files opened by the current user: all the corresponding physical data files are closed for the current user.
REP files
REP files contain the list of data files handled by the application....
The TreeMap control
...The TreeMap control is used to dynamically represent data, possibly in tree structure, in a balanced way....
HTrack (Function)
Starts tracking write actions (addition, modification or deletion) performed on a file found in an HFSQL server.
Filter (Function)
Returns an array containing the elements of a source array for which a procedure returns True.
7. HFSQL: files physically created
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