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...
<Looper>.Add (Function)
Adds a row at the end of a Looper control.
iPrintZone (Example)
Usage example of the iPrintZone function
HInfoServerRights (Example)
Usage example of the HInfoServerRights function
HInfoFileRights (Example)
Usage example of the HInfoFileRights function
EmailSaveAttachment (Example)
Usage example of the EmailSaveAttachment function
Markdown
Markdown is a lightweight markup language that allows you to apply formatting to text......
Native MariaDB Connector for WINDEV and WEBDEV
WINDEV and WEBDEV propose a Native Connector to MariaDB (also called Native Access)......
LooperModify (Function)
Changes the values of the attributes in a row of a Looper control.
FTPCommand (Function)
Sends a specific FTP command to a server.
HGetCurrentPosition (Function)
Returns the approximate position of current record in the data file.
ErrorInfo (Function)
Retrieves information about the last error that occurred in a function of a WINDEV, WINDEV Mobile or WEBDEV component.
ServiceContinue (Function)
Restarts a paused service.
HNbRec (Example)
Usage example of the HNbRec function
fUncompress (Example)
Usage example of the fUncompress function
HMergeView (Example)
Usage example of the HMergeView function
HFSQL management functions
List of functions for HFSQL management...
HChangeName (Example)
Usage example of the HChangeName function
fDelete (Example)
Usage example of the fDelete function
Using C# code
You can use C# code in WINDEV applications (Windows applications and components, .NET assemblies......
LineHeight (Property)
The LineHeight property is used to get and change the height of the rows: in a List Box control, in a ListView control (standard display mode only), in a Table control, in a Combo Box control, in a Looper control (height of the row), in an Organizer control....
Creating an automatic help
The Automatic Application Features (AAF) allow you to add features to your application without having to write a single line of code......
JITc
The principle of JITc technology (Just In Time Compilation) is straightforward......
The Social Network control
The "Social network" control is a toolbar containing icons used to establish the link to the main social networks of the Web......
ManageHTML (Property)
ManageHTML is used to configure the management mode of the HTML format in a full-text index.
ManageRTF (Property)
ManageRTF is used to configure the management mode of the RTF format in a full-text index.