ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

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...
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Example for creating a select query
This help page explains how to create two select queries...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a 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...
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Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
Joins between the tables of a select query
When several tables are used in a query, the query editor automatically searches for the links between these tables described in the database schema...
Project comparator
Comparing two windows (two pages, two reports, two classes, ...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Creating a query
Two methods can be used to create a query...
Creating a select query
A select query (corresponding SQL statement...
Test of a query
The query editor allows you to run the test of query result...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
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...
Environment of the query editor
When creating a class in the code editor, the Constructor and Destructor methods are automatically created by default...
Items used in a select query
A query created in the query editor can contain several types of items...
Creating an insert query
An insert query (corresponding SQL statement...
Accessibility (Property)
The Accessibility property gets and sets the accessibility properties of a control.
hSecurityPolicy (Variable type)
The hSecurityPolicy type gets and sets all the advanced characteristics of a password security policy implemented on a server in HFSQL Client/Server mode. This variable type is only available in subscription-based versions, starting with WINDEV Suite 2025 - Update 3....
Managing the critical sections
Semaphores are used to limit the simultaneous execution of a code (procedure, line of code, etc....
HFConf.Ini file
The HFConf.INI file is found at server root. This file is used to define several characteristics of HFSQL Client/Server server....
TableAdd (Function)
Adds a row in: a Table control, a TreeView Table control, a Combo Box control "with table" (Table control displayed in a Combo Box control)....
mlzAddLine (Function)
Adds a new dynamic row into a Multiline Zone control.
CaptionHTML (Property)
The CaptionHTML property is used to handle the text of a control as HTML code.
InitialState (Property)
The InitialState property is used to get the initial state of a control.
Installing and using a Bitcoin Core server
WLanguage offers various functions for handle a Bitcoin Core server......
Drag-and-drop operation set programmatically
The programmed Drag and Drop is used to entirely manage Drag/Drop between the different types of controls......
Managing parallel tasks
The computers are becoming more and more powerful......
Assisted HFSQL error handling
WINDEV, WEBDEV and WINDEV Mobile include a module for assisted management of HFSQL errors......
The "Surface" charts
The Surface chart is used to represent correlated analogical data, according to 3 axes...
Creating an Android widget
Widgets are small applications that can be displayed on the home screen of phones or tablets......
Pinned control in a window
A pinned control remains visible even if the user moves the scrollbar of the container to display a non-visible area......
Handling Organizer controls programmatically
Organizer controls can be handled programmatically....
The "Column" charts
The data is interpreted as "columns" whose height is proportional to the value of data......
Table control populated programmatically: WLanguage
Here is an overview of how to handle Table controls populated programmatically in WLanguage....
Project description: Options tab
The project description window allows you to configure various elements of your project......