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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

HReset (Function)
Initializes: one or all variables of file items with their default values. one or all items of a Record variable with their default values....
HOpen (Function)
Opens a data file.
Browsing the HFSQL data files
The "Key" items are used to organize the records in a data file in order to optimize the browse or the search......
Replication: The different types
The data replication is a powerful feature......
HOpenConnection (Function)
Opens a connection to a specific database.
Log-based replication: Programming the log-based replication in WLanguage
Several WLangage functions allow you to include log-based replication in your application and to customize it......
HPass (Function)
Defines the password used to create or open a data file.
Log-based replication
The replication is the operation allowing you to keep updated remote databases of identical structures on which several operations are performed......
Implementing log-based replication: Modifying the analysis
Log-based replication can be implemented in the data model editor......
HFirst (Function)
Sets the position on the first record of a data file according to the specified browse item.
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......
HCross (Function)
Crosses a record in a data file.
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......
HSeek (Function)
Positions on the first record of the data file whose value for a specific item is greater than or equal to a sought value (generic search by default).
HBackward (Function)
Moves backward several records from the current position in the data file, according to a specified item.
HRegenerateFile (Function)
Regenerates a data file from its log.
HRetrieveItem (Function)
Returns the content of an item found in the current record (in the data file, view, query, ...).
HStatNbDuplicates (Function)
Returns the number of duplicates for a given key item.
HSecurity (Function)
Enables or disables the automatic security mechanism on one or more data files.
HTransactionCancel (Function)
If a transaction is in progress, cancels all the operations performed on the data files in transaction since the start of transaction.
HTransactionStart (Function)
Starts a transaction on the data files (HFSQL or accessed via a Native Connector) and creates the transaction file.
HTransactionEnd (Function)
Validates the current transaction: the modifications performed on the data file since the start of transaction (HTransactionStart) are validated. the transaction file is deleted (if the transaction is the last transaction in progress for a network application) the records locked in read-only by the transaction are unlocked....
HDeleteLink (Function)
Deletes an integrity rule between two data files on the server.
Events associated with Check Box controls
List of events associated with Check Box controls...
The Check Box control
A Check Box can correspond to......