ONLINE HELP
 WINDEV, WEBDEV 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...
Power (Function)
Raise a number to a power.
fOpenTempFile (Function)
Creates and opens a temporary file.
SchedulerDeleteResource (Function)
Deletes a resource from a Scheduler control.
fDirRename (Function)
Renames a directory.
HListREP (Function)
Returns the list of assignments for the data files handled by the current application, which means the list of physical files corresponding to the files described in the analysis.
1. HFSQL Client/Server: Implementation
WINDEV Tutorial: Using an HFSQL Client/Server database Lesson 1 - HFSQL Client/Server: Implementation - 10 min...
HPass (Function)
Defines the password used to create or open a data file.
Automated tests of window
The automated tests of window are used to check the different features proposed by the window......
AWP without UI
Bootstrap, Angular, React, Vue......
Page templates
WEBDEV allows you to create page templates......
Multiselection (Property)
The Multiselection property gets and sets the selection mode: in a Table and TreeView Table control. in a Pivot Table control. in a List Box and ListView control. in a Looper control. in a Calendar control. of files in an Upload control....
HRecordToJSON (Function)
Retrieves the structure and value of the current record and exports them into a string in JASON format.
NullableIndex (Property)
The NullIableIndex property determines if a key item supports the "Null" value.
dCopyImage (Example)
Usage example of the dCopyImage function
HAlias (Example)
Usage example of the HAlias function
zipExtractAll (Example)
Usage example of the zipExtractAll function
EmailReadFirst (Example)
Usage example of the EmailReadFirst function
FontName (Property)
The FontName property is used to: Identify the font used in a control. Change the font used in a control....
Advanced types
The advanced types of WLanguage are as follows...
9. Overlaying controls
grDestinationWnd (Function)
Defines a window as chart destination.
iPageNum (Function)
Returns or initializes the number of the page currently printed.
Handling Spreadsheet controls programmatically (in a window)
Spreadsheet controls can be handled programmatically......
Universal Windows 10 App: Deploying on the store
Your Universal Windows 10 App application is ready to be used......
Handling Native Container controls programmatically
The Native Container control returns an handle/identifier......
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