ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Creating a delete query
A delete query (corresponding SQL statement...
HSuggestKey (Function)
Returns a list of keys to add to data files to improve query performance.
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
Project comparator
Comparing two windows (two pages, two reports, two classes, ...
Creating a query
Two methods can be used to create a query...
Items used in a select query
A query created in the query editor can contain several types of items...
Sort order of records found in a select query
To make the result of a query easier to read, the records can be sorted according to one or more items...
Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Create an insert query
An insert query (corresponding SQL statement...
Carrying over the differences from an element to another one
The project comparator is used to compare two elements and to list the differences found...
Joins between the data files of a select query
When several data files are used in a query, the query editor automatically searches for the links between these files defined in the analysis...
Code history
The code history is used to...
Environment of the query editor
Creating a select query
A select query (corresponding SQL statement...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query...
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Select query description window
The description window of a select query includes several sections...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
Example for creating a select query
This help page explains how to create two select queries...
Modifying the values displayed in the result of a select query
In the result of a select query, you have the ability to only display...
Test of a query
The query editor allows you to run the test of query result...
Select query: Displaying the first/last n records
The editor of Select queries is used to limit the number of records that will be displayed in the result of the query.
Query: Displaying the records corresponding to a given period
When a "Date" item is found in the query, you have the ability to only select the records corresponding to a given period...
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file...
Result of a query in test mode
After its execution in test mode (see Running the query test), the result of the query can be...
Error: Redefinition of syntax
The '<method>' methods of the '<derived class>' class and of the '<base class>' class do not have the same prototype......
Creating the Relation windows of a WINDEV RAD pattern
BitwiseOR (Function)
Returns the result of the (bitwise) logical OR between two values.
Title (Property)
The Title property is used to: Get the title of a Table control column, a Chart control, a window or a page Change the title of a Table control column, a Chart control, a window or a page....
LooperAddLine (Function)
Adds a row at the end of a Looper control.
INIWrite (Function)
Writes a specific value into an INI file (or into a file structured like an.INI file).
FTPDate (Function)
Returns the different dates of a file (date the file was created, modified or accessed) located on an FTP server (File Transfer Protocol).
HDescribeTrigger (Function)
Adds or modifies a trigger on an HFSQL data file.
SocketRead (Function)
Retrieves a message sent by another socket.
fMoveFile (Function)
Moves a file from one directory to another.
BackgroundColor (Property)
The BackgroundColor property is used to set the background color of a control, window, page or block of a report.
Compressing frames (DSL, 3G, Edge, VPN, ...)
A frame is a packet ot data that flows through the network......
Automatic Drag and Drop
For some types of controls, WINDEV and WEBDEV propose an automatic management of Drag and Drop....
Internal component description
The description of an internal component can opened at any time......
Report viewer: Proposing several reports
In the document preview, end users can......
Customizing the Switch controls
The Switch control is a 2-state Check Box control (on/off, true/false, yes/no)......
Generating the LDM from the CDM
To associate a CDM (Conceptual Data Model) with a project, you must generate the associated LDM (Logical Data Model)......
Importing an HTML page into a WEBDEV site
WEBDEV allows you "suck up" the existing HTML pages......
I was using Visual Basic with WINDEV 5.5. How to proceed in WINDEV 2024?
You have the ability to use external languages with WINDEV......
WDTrans: Overview
WDTrans is a tool for canceling transactions......
Properties associated with a window
List of properties associated with a window...
GDPR: Concrete solutions
GDPR: General Data Protection Regulation...
Performance profiler
The performance profiler (also called Profiler) is used to check and optimize the execution time of your application......
Using several libraries in an application
A library is a WDL file that contains all the resources......
SIPVisible (Function)
Displays the keyboard.