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...
fListFile (Example)
Usage example of the fListFile function
How to access the help?
WINDEV, WEBDEV and WINDEV Mobile include several methods for accessing the help system at any time......
ImageMode (Property)
The ImageMode property is used to get and change the display mode of an image in an Image control, in the column of a table of type Image or in the background of a Chart control in a window.
Link control associated with an item containing an email address
In a database, the email address of customers, suppliers, ......
Clipping the window according to an image
An image can be used to easily define the shape of a window......
WDConver : Overview
WDConver is a tool used to convert data to an HFSQL Classic data file from......
Keyboard shortcut and hotkey
A control in a window or page can be associated with an alphanumeric character, a key or combination of keys ("keyboard shortcut"), etc....
Handling an automatic test
When an automated test is created, this test is in "construction" by default......
Column of type Attribute
WINDEV and WEBDEV allow you to use columns of type "Attribute" in Table controls......
Warning (Function)
Displays a custom message in a system warning window.
SchedulerAddResource (Function)
Adds a new resource into a Scheduler control.
fCompress (Example)
Usage example of the fCompress function
The "Window position preview" pane
The "Window position preview" pane is used to view and/or modify the opening position of the windows currently modified (according to the screen resolution used)......
WDLog: Viewing a log file
WDLog is used to view the content of a log file......
2. Performance profiler
WINDEV Tutorial: Optimizing a project Lesson 2 - Performance profiler - 15 min
Repetition (Type of variable)
The Repetition type is used to describe and modify the characteristics of a repetition for an appointment via the different WLanguage properties.
ShortcutKey (Property)
The ShortcutKey property gets and sets the keyboard shortcut associated with a control.
WinEdSelectOccurrence (Function)
Indicates the number of controls selected when the interface is modified by the end user ("Allow end users to modify the UI" option enabled).
Movable (Property)
The Movable property is used to: Find out whether a table column can be moved by the user, Allow and/or forbid a table column to be moved by the user....
KeyExpression (Property)
The KeyExpression property is used to set the different components of a composite key.
HugeFile (Property)
The HugeFile property is used to configure the maximum size of a data file.
The Flash control
The Flash control is used to display a Flash® animation in a WEBDEV page......
Handling an ActiveX by programming
WINDEV allows you to handle an ActiveX control in WLanguage via......
WinAnimationOpening (Function)
Modifies the type and duration of animations used when opening the application windows.
SchedulerChangeMode (Function)
Modifies the period (which means the number of days) displayed by a Scheduler control.