ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Unalterable data files
This feature is used to signal that a data file cannot be modified after writing......
How to create an SQL query to get a TOP 10?
This help page presents the method for creating an SQL query used to get the first 10 records......
HSetPosition (Function)
Sets the position on a record, based on the approximate position of one of its items.
How to choose the data source of a control?
This help page presents the different data sources available for a control....
Structure of log files (HFSQL Client/Server)
The following files are automatically created when logging an HFSQL Client/Server data file......
HState (Function)
Used to find out the state of a record.
Count (Property)
The Count property returns the number of elements in a given set.
<Source>.HistoryModification (Function)
Returns the modifications performed on one or more items of a given record. The result can be displayed in a list box or in a table to allow the user to view the modifications made to the specified file.
HAccelerateSpeed (Function)
Reorganizes the internal structure of the indexes to optimize the speed for accessing the data.
Management errors specific to Native Connectors
When an HFSQL function fails (returns False for example), the corresponding error number is returned by HError......
Native xBase/FoxPro Access: Specific features and remarks
This help page presents the specific features regarding the programming of Native xBase/FoxPro Access......
WDHFDiff - Use
WDHFDiff is used to compare......
11. Table/Looper controls
Table/Looper controls can be used to display a set of information......
11. Table/Looper controls
WDMap: Modifying the display mode of records
By default, WDMap displays the records found in a data file by using the following rules......
HWrite (Function)
Writes a record into a data file without updating the indexes corresponding to all keys used in the file.
11. Table/Looper controls
Multi-database queries
A query (typed in SQL code) can operate on different databases......
SQLFirst (Function)
Positions on the first row of the query result.
HSavePosition (Function)
Stores the current file context: current record, filter, pointers.
HRestorePosition (Function)
Restores the context of a previously saved file (HSavePosition): current record, filter, pointers.
WDAdminHF: Managing a database
The remote HFSQL administrator proposes a full management of the HFSQL Client/Server databases......
HReadLast (Function)
Sets the position on the last record of a data file according to a browse item.
Project description: Files tab
The project description window allows you to configure various elements of your project......
SQL selection conditions
To specify the selection conditions in an SQL query, you can use......
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