ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

SysDateTime (Function)
Returns or modifies the system date (current date and time defined on the current computer).
DateTimeUTCToLocal (Function)
Converts a UTC date and time to local time (time zone, summer time, winter time).
<Chart>.AddData (Function)
Adds a data into a chart.
<Chart>.GetData (Function)
Retrieves a data from a chart.
<Source>.Open (Function)
Opens a data file.
grGetData (Function)
Retrieves a data from a chart.
DDEUpdate (Function)
Modifies a linked data.
HOpen (Function)
Opens a data file.
grAddData (Function)
Adds a data into a chart.
How to create an SQL query with a calculation formula?
This help page explains how to create a query with a calculation formula with the query editor....
Native SQL Server Connector: Programming with HFSQL functions
To use an SQL Server database with Native Connector, the structure of SQL Server tables must be imported into the data model analysis......
Generating the analysis
The analysis generation comes before the programming phase and after the file description phase......
SQLite: Programming with HFSQL functions
To use an SQLite database with Native Connector (also called Native Access), the structure of SQLite tables must be imported into the data model editor....
How to save and retrieve an image in a binary memo
9. Queries
A query is used to request information from a database to view, insert, change or delete data....
The requested action cannot been performed: the page was not synchronized
Looper control linked to a data file
A Looper control can be used to display the content of a data file or query......
<Source>.ListItem (Function)
Returns the list of items in a data file (query or view) recognized by the HFSQL engine. The data files defined by HDeclare, HDeclareExternal and HDescribeFile are taken into account.
Analysis associated with a project
When a WINDEV, WEBDEV or WINDEV Mobile project uses data files, it must be associated with an analysis......
The "Internal report" control
The "Internal report" controls are used to print several reports (secondary reports) in a single report (main report) without programming......
Native SQLite Connector: Programming with SQL functions
The use of SQL functions to handle SQLite data does not require importing the data file structure into the analysis....
<Source>.CancelDeclaration (Function)
Allows you to: Delete a declaration made previously using HDeclare, HDeclareExternal, HDescriveFile. After this operation, the data file is no longer recognized by the HFSQL engine. Free the resources of a query (after calling HExecuteQuery or HExecuteSQLQuery)....
Binding an OLE control to an item
An OLE control can be bound to an item in a data file, query, etc....
HCancelDeclaration (Function)
Used to: Delete a declaration made previously using HDeclare, HDeclareExternal, HDescriveFile. After this operation, the data file is no longer recognized by the HFSQL engine. Free the resources of a query (after calling HExecuteQuery or HExecuteSQLQuery)....
WDStatistics: Using WDStatistics
WDStatistics can be used once the log files have been imported......
CalendarButton (Property)
The CalendarButton property is used to determine and specify whether a Date Edit control has a button to display a popup calendar.