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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Drag and Drop
Drag and Drop is used to transfer data between several controls with the mouse. This data can be moved between several controls found in the same application or in different applications.
WINDEV: Example of programmed Drag and Drop
An iOS application with an iOS widget configuration can contain one or more iOS 14 widget windows...
Drag and Drop from the explorer
The Drag and Drop from the explorer consists in selecting one or more files in the Windows explorer and in transferring them into a control of a WINDEV window...
Automatic Drag and Drop
For some types of controls, WINDEV and WEBDEV offer an automatic management of Drag and Drop.
Drag and Drop functions
The following functions are used to manage Drag and Drop:
Drag-and-drop operation set programmatically
The programmed Drag and Drop is used to entirely manage Drag/Drop between the different types of controls...
ExplorerRetrieve (Function)
Retrieves the number and the name of the files "dropped" from the explorer.
EmulateDnD (Function)
Emulates a "Drag & Drop" gesture in automated tests.
HTML 5: Example of programmed drag-and-drop management
To make a WEBDEV website more interactive, you have the ability to implement Drag and Drop in the pages.
<Source>.Backward (Function)
Moves backward several records from the current position in the data file, according to a specified item.
<Source>.CheckUnaltered (Function)
Checks whether one or all records in an unalterable data file have not been modified (with an hexadecimal editor for example).
CtDescribedCaption (Property)
The CtDescribedCaption property is used to get and set the caption of the connection to the OLE DB data source.
InitialFile (Property)
The InitialFile property is used to get the original name of the data file associated to an item in a query.
OperationLogDirectory (Property)
The OperationLogDirectory property is used to manage the directory of the operation log file associated with a data file.
fDataDir (Function)
Returns the full path of the directory of HFSQL data files specified by the user when installing the application.
FileToMemoryList (Function)
Populates a List Box or Combo Box control programmatically with the records from a data file or query.
HWrite (Function)
Writes a record into a data file without updating the indexes corresponding to all keys used in the file.
HDeleteFile (Function)
Deletes the HFSQL data files (.fic, .ndx, .ftx and .mmo files if they exist) from the server.
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......
HBackward (Function)
Moves backward several records from the current position in the data file, according to a specified item.
HTransactionCancel (Function)
If a transaction is in progress, cancels all the operations performed on the data files in transaction since the start of transaction.
H.VisibleAutoIndexing (Variable)
Indicates whether the indexing window must be displayed during the automatic reindexing of HFSQL data files.
HForward (Function)
Moves several records forward from the current position in the data file, according to a specified item.
HCreation (Function)
Creates an empty data file (".FIC" extension) with the index file and the memo file if necessary.
HDBOpenNoLock (Function)
In single-user mode, opens an xBase data file without locking it.
HUnlockFile (Function)
Unlocks the records of a data file: locked by HLockFile. individually locked by a locking read function....
DateTimeLocalToUTC (Function)
Converts a local date and time (time zone, summer time, winter time) to UTC.
<Gantt chart>.ChangeMode (Function)
Changes the number of days displayed in a Gantt Chart column in a Table or TreeView Table control.
HExportJSONString (Function)
Exports the records from a data file (HFSQL or OLE DB), view or query to a JSON string.
<HFSQL file>.ExportJSONString (Function)
Exports the records from a data file (HFSQL or OLE DB), view or query to a JSON string.
Canada.CheckBN15 (Function)
Checks the validity of a Canadian 15-digit Business Number (BN15).
Canada.CheckBN9 (Function)
Checks the validity of a Canadian 9-digit Business Number (BN9).
<Connection variable>.DeleteFile (Function)
Deletes the HFSQL data files (.fic, .ndx, .ftx and .mmo files if they exist) from the server.
<Connection variable>.TransactionCancel (Function)
If a transaction is in progress, cancels all the operations performed on the data files in transaction since the start of transaction.