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Versión: 2025

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Resultados 351-375 de 4687 para data file
How do I run through a data file?
Looper control linked to a data file
A Looper control can be used to display the content of a data file or query...
Creating an executable: Data file directory
Two types of directories can be configured when creating the executable...
Analysis: Description of data file structure
The analysis allows you to define the structure of data files used by the project...
Generating a description of a data file from a window or from a page
When you design a quick prototype, you often create windows (or pages) without defining any data files...
HListFullTextIndex (Function)
Returns the list of full-text indexes of a file (a query or a view) recognized by the HFSQL engine.
HClose (Function)
Closes either a data file or all data files opened by the current user: all corresponding physical data files are closed for the current user.
<Source>.Watch (Function)
Trigger monitoring of write actions (add, modify or delete) performed on a data file present on an HFSQL server. In case of modification, a specific procedure can be triggered.
HEndNoModif (Function)
Unlocks a file that was locked by the same program with HNoModif.
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.
<Source>.ExportJSONString (Función)
Exporta los registros de un archivo de datos (HFSQL u OLE DB), vista o consulta a una cadena JSON.
HDeactivateFilter (Function)
Temporarily disables the filter on a data file (view or query).
HDescribeFile (Función)
Describe un archivo de datos mediante programación.
fDataDir (Function)
Returns the full path of the directory of HFSQL data files specified by the user when installing the application.
<Source>.Reset (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.
HRecordToString (Function)
Converts the content of the current record to string (in a data file, HFSQL view, query, etc.).
HExportJSON (Función)
Exporta los registros de un archivo de datos (HFSQL u OLE DB), vista o consulta a un archivo JSON.
HListStopWord (Function)
Returns the list of stop words used by a full-text index.
<Source>.CheckUnaltered (Function)
Checks that one or all records in an unalterable data file have not been modified (e.g. with a hexadecimal editor).
HDescribeTrigger (Function)
Adds or modifies a trigger on an HFSQL data file.
HDeleteView (Function)
Deletes a previously created view. This function uses the former view mechanism.
HListREP (Function)
Returns the list of assignments for the data files handled by the current application, which means the list of physical files corresponding to the files described in the analysis.
HExportXML (Function)
Exports the records found in a data file (HFSQL or OLE DB), view or query to an XML file.
<Source>.DescribeTrigger (Function)
Adds or modifies a trigger on an HFSQL data file.
HGetCurrentPosition (Function)
Returns the approximate position of current record in the data file.
HRestorePosition (Function)
Restores the previously saved context of a file (function HSavePosition): record in progress, filter, playback pointers.
HListItem (Function)
Returns the list of items:
  • found in a data file ( a query or a view) known to the HFSQL engine. The data files defined by HDeclare, HDeclareExternal and HDescribeFile are taken into account.
  • found in a Record variable.
HWrite (Function)
Writes a record into a data file without updating the indexes corresponding to all keys used in the file.
Unalterable data files
This feature is used to signal that a data file cannot be modified after writing...
HSetPosition (Function)
Sets the position on a record, based on the approximate position of one of its items.
HReadPrevious (Function)
Sets the position on the previous record of a file according to a browse item.
HFilter (Function)
Defines and enables a filter on a data file, view or query.
HFound (Function)
Checks whether the current record corresponds to the current filter or search.
HFirst (Function)
Sets the position on the first record of a data file according to the specified browse item.
HLast (Function)
Sets the position on the last record of a data file according to a browse item.
HDeactivateTrigger (Function)
Disables a trigger.
HListKey (Function)
Returns the list of keys in a data file (query or view) recognized by the HFSQL engine.
HListFile (Function)
Returns the list of files:
  • current analysis.
  • analyses in progress (projects with multiple analyses).
  • a specific analysis recognized by the HFSQL engine.
  • available on a connection via a Native Connector or an OLE DB driver.
  • for a group of files defined in the data model editor.
Using Unicode in HFSQL data files
The analysis proposes two types of Unicode items...
HListSynonym (Function)
Returns the list of synonyms used by a full-text index.
Managing connections
WINDEV, WEBDEV and WINDEV Mobile propose different methods for describing a connection...
NULL values in HFSQL
WINDEV, WEBDEV and WINDEV Mobile allow you to manage the NULL value in the items of the HFSQL data files and for all the other types of accesses (Native, OLE DB, ...
HDescribeLink (Function)
Describes a link between two data files programmatically.
HErrorLock (Function)
Used to check whether a lock error occurred.
HDeleteAll (Function)
Deletes all records from a data file, an HFSQL view or a query.
HErrorPassword (Function)
After the execution of a read or write function in a data file, used to find out whether an error caused by a wrong password occurred on this data file.
<Source>.SavePosition (Function)
Stores the current context of a data file: current record, filter, read pointers.
<Source>.RestorePosition (Function)
Restores the previously saved context of a file (function HSavePosition): record in progress, filter, playback pointers.
HUnlockRecNum (Function)
Unlocks a record locked by:
  • HLockRecNum,
  • a read function used with a locking parameter (HRead associated with the hLockWrite or hLockReadWrite constant for example).
HExportJSONString (Función)
Exporta los registros de un archivo de datos (HFSQL u OLE DB), vista o consulta a una cadena JSON.
<Source>.Open (Function)
Opens a data file.
HNoModif (Function)
Forbids all the modifications on a data file (for all the programs, including the one that requested the no-modification policy).
HCheckUnaltered (Function)
Checks that one or all records in an unalterable data file have not been modified (e.g. with a hexadecimal editor).
HDelete (Function)
Deletes a record from a data file (query or view).
HDescribeFullTextIndex (Function)
Describes a full-text index of data file created programmatically.
<Source>.Previous (Function)
Sets the position on the previous record of the data file according to a browse item.
HExportXLS (Function)
Exports records from a data file (HFSQL or OLE DB), view or query to an Excel file (XLSX).
HOut (Function)
Used to find out whether the record on which you want to be positioned is located outside the data file, filter, view or query.
HPrevious (Function)
Sets the position on the previous record of the data file according to a browse item.
<Source>.ListLink (Function)
Returns the list of links (Merise) in the current analysis or in a specific analysis.
HExportCSV (Function)
Exports the records found in a data file (HFSQL or OLE DB), a view or a query to a CSV file.
Zombie data files and items
During the life of an application, items live and die...
HDescribeItem (Function)
Describes a file item programmatically.
<Source>.DeactivateFilter (Function)
Temporarily disables the filter on a data file (view or query).
Application triggers
A trigger is a WLanguage procedure automatically called by the HFSQL engine whenever a modification is performed (addition, deletion, modification, ...) on a record of a data file.
HUnlockFile (Function)
Unlocks the records of a data file:
  • locked by HLockFile.
  • individually locked by a locking read function.
<Source>.RecordToString (Function)
Converts the content of the current record to string (in a data file, HFSQL view, query, etc.).
HReadNext (Function)
Sets the position on the next data file record according to a browse item.
HListLink (Function)
Returns the list of data file bindings (Merise type) present:
  • in the current analysis,
  • in ongoing analyses (projects with multiple analyses).
  • in a specific analysis.
HWatch (Function)
Trigger monitoring of write actions (add, modify or delete) performed on a data file present on an HFSQL server. In case of modification, a specific procedure can be triggered.
HCreateView (Function)
Creates an HFSQL view.
This function uses the former view mechanism.
HReadLast (Function)
Sets the position on the last record of a data file according to a browse item.
HOpen (Function)
Opens a data file.
HRead (Function)
Reads a record in a file according to a given record number.
HRetrieveRecord (Function)
Returns the content of the current record (in a file, a view or a query, ...).
HSavePosition (Function)
Stores the current file context (current record, filter, pointers).
Propiedades associated con las filas de una control TreeView
Las filas de los controles TreeView que se encuentran en una ventana o en una Page pueden ser manejadas por las propiedades WLanguage......
¿Cómo set el foco a una columna en un control Tabla?
Para set el foco a una columna en control Tabla (es decir, para ser posicionado en la entrada de esta columna), ......
CheckAnyFalse (Función)
Devuelve True si al menos un elemento de un array vale False.
<Array>.AnyFalse (Función)
Devuelve True si al menos un elemento de un array vale False.
ArrayCount (Función)
Devuelve: el número de elementos de un array unidimensional. el número de filas en un array bidimensional. el número de elementos en la primera dimensión de un array tridimensional o N-dimensional....
<Array>.Count (Función)
Devuelve: el número de elementos de un array unidimensional . el número de filas en un array bidimensional . el número de elementos en la primera dimensión de un array tridimensional o N-dimensional....
<sshSession Variable>.Read (Función)
Reads the data found on the output buffer of the SSH session.
¿Cómo llenar una control Tabla TreeView?
Esta página de ayuda explica cómo rellenar una control Tabla TreeView mediante programación....
AAF: Aumentar la altura de las filas en los controles Table o Looper
En los controles de Tabla, TreeView Tabla y Looper, el usuario puede redimensionar la altura de las filas, en sólo lectura o en edición......
Romper en un control Tabla
Una pausa en una control Tabla sirve para agrupar los datos correspondientes a uno o varios argumentos......
Comandos de voz en el entorno
Los entornos de WINDEV, WEBDEV y WINDEV Mobile responden a los comandos de voz.......
WDConver : Presentación
WDConver permite convertir los datos de un archivo en un archivo HyperFileSQL Classic......
<Kanban>.Filter (Función)
Muestra solo las tarjetas que coinciden con el filtro especificado.
<Array>.Filter (Función)
Devuelve un array que contiene los elementos de un array fuente para los que un procedimiento devuelve True.
Firmar aplicaciones iOS
La firma de una solicitud es obligatoria desde Xcode 8......
Menú de tablas de automatic (AAF)
Cada control Tabla que se encuentra en una ventana propone un menú al usuario......
Fecha (Tipo de Variable)
El tipo Date permite manipular las fechas fácilmente...
Personalización de la interfaz de un control Tabla
En una control Tabla, usted tiene la posibilidad de personalizar los siguientes elementos.......
Ejemplos de uso del proveedor OLE DB para HFSQL
Tabla TreeView reporte
Manipular fechas y horas
WINDEV, WEBDEV y WINDEV Mobile proponen varios métodos para manipular fechas y horas en las aplicaciones......
Day (Property)
El Day Property se utiliza para: Obtiene el día de una Fecha o Hora Variable, u obtener el número de días de una Duración Variable. Cambiar el día de una Fecha o Hora Variable, o cambiar el número de días de una Duración Variable. get el día o el número de días de un elemento de fecha (en formato "Fecha", "Fecha y hora" o "Duración") Modificar el día o el número de días de un elemento Date (en formato "Date", "Date and Time" o "Duration")....
¿Cómo crear dos tablas relacionadas en cascada?
Esta página de ayuda explica cómo crear dos controles Tabla en cascada en una ventana o página....
FinRepayVal( Función)
Devuelve el importe de cada pago regular para una inversión con tipo de interés fijo y pago fijo.
WDMap: Presentación
WDMap es una herramienta utilizada para visualizar y manipular un archivo de datos mientras se desarrolla una aplicación......