ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Environment of the query editor
When creating a class in the code editor, the Constructor and Destructor methods are automatically created by default...
Creating a query
Two methods can be used to create a query...
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file...
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...
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...
Select query description window
The description window of a select query includes several sections...
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...
Test of a query
The query editor allows you to run the test of query result...
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query...
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...
Items used in a select query
A query created in the query editor can contain several types of items...
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.
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
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...
Example for creating a select query
This help page explains how to create two select queries...
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...
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...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Creating a delete query
A delete query (corresponding SQL statement...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Creating a select query
A select query (corresponding SQL statement...
PageLayout (Property)
The PageLayout gets and sets the layout of the current diagram in the Diagram Editor control. The layout of the diagram is defined in a variable of type diagLayout.
HTMLEnableDebugger (Function)
Enables the HTML/JavaScript debugger on CEF-based HTML controls: HTML Display or HTML Editor control....
Events associated with Shape controls
List of events associated with Shape controls...
Events of the Mobile Image Editor control
control Image Editor allows you to offer your mobile application users the possibility to edit and modify images or photos......
Scheduler report
The report editor allows you to create "Scheduler" reports....
Functions for managing Image Editor controls and WDPic variables
The following functions are used to manage Image Editor controls and WDPic variables:...
Code editor: Various operations
The code editor is the editor where the developers spend most of their time. This help page presents a series of useful options for the most common actions ......
Showing or hiding empty events or processes of an element
All WLanguage code is written in the code editor, which offers several events on a given control ......
The setup editor WDInst
WDInst is a setup editor used to define the setup parameters of your application......
Events associated with Table controls
List of events associated with Table controls...
The different types of browse available in SQL
Two types of browse can be used to browse the result of a query run by SQLExec......
5. Unit tests
Unit tests (also called automated tests) are used to test windows, procedures and classes in an application at different levels of development......
Creating a help file
WINDEV, WEBDEV and WINDEV Mobile allow you to create a help file and associate it with an application or website......
Events associated with windows
List of events associated with windows...
Events associated with Splitter controls
List of events associated with Splitter controls...
Events associated with Spin controls
List of events associated with Spin controls...
PDF Reader control: How to use the ribbon and tabs
The PDF Reader control includes multiple features accessible via......
Binding a Spin control to an item
A Spin control can be bound to an item in a data file, query, etc....
Empty (Property)
The Empty property is used to determine if: a Looper, Table, List Box or Combo Box control is empty. The control can be a browsing control or a memory control. a Chart control contains no series. a report control is empty (control linked to an item). an array (or an associative array) contains no element. an element of an associative array exists or not. a queue, a list or a stack contains no element....
<Source>.Optimize (Function)
Used to handle the idle periods of a software (period without processes) to optimize the queries and the browses that will be run thereafter.
HOptimize (Function)
Used to handle the idle periods of a software (period without processes) to optimize the queries and the browses that will be run thereafter.
The Web Component control
The Web Component control is used to include any external Web resource in a WEBDEV site......
Extension (Property)
The Extension property is used to: get the extension of a file defined in the data model editor or through programming. define the extension of a file (when the file is described through programming only)....
Events associated with TreeView controls
List of events associated with TreeView controls...
Creating an interactive diagram
The Diagram Editor control allows end users to create and edit diagrams......