ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
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, ...
Creating an insert query
An insert query (corresponding SQL statement...
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...
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...
Events associated with Looper controls
List of events associated with Looper controls...
Sequence of selection conditions for a query
When at least two selection conditions are found in a query, the sequence of selection conditions must be specified by the conditional operators AND and OR......
Linking a Scheduler control to a table or variable
You can create Scheduler controls directly linked to the data....
Project description: Project tab
The project description window allows you to configure various elements of your project......
Events associated with a Layout control
<Window>.FromFile (Function)
Automatically updates the controls in a window or page with: the values of the bound items in the current record (loaded in memory) of the data file described in the data model editor. the values of the bound WLanguage variables. This operation is performed regardless of the state of the controls (grayed, inactive or invisible)....
1. Analysis: Database structure
When a WINDEV, WEBDEV or WINDEV Mobile project uses data files, it must be associated with an analysis....
Events associated with Static controls
List of events associated with Static controls...
Events associated with Edit controls
WLanguage events associated with Edit controls...
FileToScreen (Function)
Automatically updates the controls in a window or page with: the values of the bound items in the current record (loaded in memory) of the data file described in the data model editor. the values of the bound WLanguage variables. This operation is performed regardless of the state of the controls (grayed, inactive or invisible)....
Events associated with Chart controls
List of events associated with the Chart controls...
Kanban control events
The following events are associated with Kanban controls......
Diagram functions (prefix syntax)
Diagram functions (prefix syntax)...
<Source>.ToPage (Function)
Automatically updates the controls of a page with: the values of the bound items in the current record (loaded in memory) of the HFSL data file described in the data model editor. the values of the bound WLanguage variables. This operation is performed regardless of the state of the controls (grayed, inactive or invisible)....
PageFromSource (Function)
Automatically updates the controls of a page with: the values of the bound items in the current record (loaded in memory) of the HFSL data file described in the data model editor. the values of the bound WLanguage variables. This operation is performed regardless of the state of the controls (grayed, inactive or invisible)....
Managing the calendars (Android/iOS)
WINDEV Mobile allows you to easily access the calendars and appointments found on the phones and tablets in Android and iOS......
TimestampUTC (Property)
The TimestampUTC property is used to: Find out whether a timestamp item will use UTC time or local time. This item was defined in the data model editor or programmatically. Define whether a timestamp item will use UTC time or local time (when describing the item through programming)....
TmeLine control linked to a data file or variable
You can create TimeLine controls directly linked to the data....
Convert your WINDEV applications into websites
A widespread need today is to transform Windows applications (or parts of applications) into dynamic websites......
Handling the views of a window
To easily handle huge windows (that cannot be entirely displayed in the editor for example), WINDEV and WINDEV Mobile allows you to handle several views of the same window......
HListFile (Function)
Returns the list of files: current database schema. database schemas in progress (projects with multiple database schemas). a specific database schema 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....