ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Manipulating Tab controls programmatically
WINDEV, WINDEV Mobile and WEBDEV allow you to manipulate a Tab control through programming......
HCreation (Function)
Creates an empty data file (".FIC" extension) with the index file and the memo file if necessary.
HWrite (Function)
Writes a record into a data file without updating the indexes corresponding to all keys used in the file.
<Source>.ImportHF55 (Function)
Imports a Hyper File 5.5 file into an HFSQL Classic file.
FileName (Property)
The FileName property gets the name of a file (WDPic file or file generated for a print job).
<Source>.CheckIndex (Function)
Checks whether the data found in the index file (.NDX file) properly refers the data found in the data file (.FIC file).
TransactionFile (Property)
The TransactionFile property is used to determine if a data file is a transaction file.
Installing the robot controller
The monitoring robot includes three executables......
Empty (Property)
The Empty property is used to determine if: a Looper, Table, List Box or Combo Box control is empty. The field can be a file or memory field. a Chart control contains no series. a report control is empty (control linked to an item). an array (or an associative array) contains no element. an element of an associative array exists or not. a queue, a list or a stack contains no element....
DefaultValue (Property)
The DefaultValue property is used to: Find out the default value of an item. This item was defined in the data model editor or programmatically. Set the default value of an item (only for items defined programmatically)....
HScheduledTask structure
The HScheduledTask structure is kept for backward compatibility (this structure will still be supported in the forthcoming version)....
Programming Looper controls based on a data file (prefix syntax)
These are the main concepts for programming Looper controls based on a data file......
Error 3: The string has no final "
<Source>.Creation (Function)
Creates an empty data file (".FIC" extension) with the index file and the memo file if necessary.
Automatic data file modification: new date format
From WINDEV 7 and WEBDEV 7 version 149, new date and time formats are available for the Hyper File files......
Length (Function)
Returns: the length of a string, i.e., the number of characters in the string (including spaces and binary zeros). the size of a buffer, i.e., the number of bytes in the buffer....
LogFile (Property)
The LogFile property is used to determine if a data file is a log file.
KeyGenerateInitialKey (Function)
Generates the initial key (unique license number) for the activation system of the application.
Null (Property)
The Null property is used to: Assign NULL to the item for the current record. Find out whether the item is associated with the NULL value for the current record. Define the default value of an item when the item is described programmatically....
<Source>.Index (Function)
Rebuilds the file index (".NDX" file).