ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

NULL values in HFSQL
WINDEV, WEBDEV and WINDEV Mobile allow you to manage the NULL value in the items of the HFSQL data files and for all the other types of accesses (Native, OLE DB, ...
Max (Function)
Returns the greatest value passed as parameter.
<ANSI string>.ToNum (Function)
Returns the numeric value of a character string. This feature enables you to perform numeric calculations on strings.
<Source>.BuildKeyValue (Function)
Builds the value of a composite key to implement a filter (HFilter) or to perform a search (HReadSeekFirst, HReadSeekLast, etc.).
HBuildKeyValueANSI (Function)
Whatever the platform used, the data stored in HFSQL data files is in ANSI format.
StringToNum (Function)
Returns the numeric value of a character string. This feature enables you to perform numeric calculations on strings.
HBuildKeyValue (Function)
Builds the value of a composite key to implement a filter (HFilter) or to perform a search (HReadSeekFirst, HReadSeekLast, etc.).
ChronoValue (Function)
Indicates the time elapsed (in milliseconds) since the call to ChronoStart.
LocalStorageGet (Function)
Retrieves a value from the local storage.
Val (Function)
Returns the numeric value of a character string.
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
<Array>.Min (Function)
Returns the lowest value in the array.
Min (Function)
Returns the lowest value.
Data persistence
The data persistence is used to store the value typed by the user...
<Array>.Max (Function)
Returns the greatest value in the array.
Brochure of new features: Common new features
New features in WINDEV/WEBDEV/WINDEV Mobile 28 presented in the New Features brochure....
New Features brochure - Version 28: Common new features
New features in WINDEV/WEBDEV/WINDEV Mobile 28 presented in the New Features brochure....
Manual deployment of a dynamic site
WEBDEV proposes several methods for deploying a dynamic site......
HTransactionStart (Function)
Starts a transaction on the data files (HFSQL or accessed via a Native Connector) and creates...
The Combo Box control
The "Combo Box" control is used to display a list of elements and to select an element...
Data source (Type of variable)
A Data source variable is used to describe a temporary data source (query, view, alias, ...)
Management errors specific to Native Connectors
When an HFSQL function fails (returns False for example), the corresponding error number...
Constants for managing character strings
List of constants used by string management functions...
2. Analysis in practice
Image Editor control: Options in the ribbon and the panes
The Image Editor control offers a host of options accessible via......
Configuring the assisted universal replication
If your application uses assisted universal replication via a .WER file, the setup creation wizard...
Managing HFSQL Client/Server files
The HFSQL Control Center allows you to fully manage HFSQL Client/Server data files......
The Multiline Zone control
The Multiline Zone control is used to easily create interfaces in iOS style....
Configuring the titles of columns (Table control)
The title of table columns is an important element of Table control......
The Scheduler control
...The Scheduler control is used to automatically display and handle schedules. It is used to manage...
Various WEBDEV constants
Various WEBDEV constants...
Events associated with Table controls
List of events associated with Table controls...
7. Sending an email
WINDEV Tutorial: WINDEV application: Managing data Lesson 7 - Sending an email - 20 min
How to choose the data source of a control?
This help page presents the different data sources available for a control....
Internal procedure
Several features require a procedure called once or several times via a WLanguage function...
Brochure of new features: new features of WINDEV Mobile
New features in WINDEV Mobile 28 presented in the New Features brochure....
New Features brochure - Version 28: WINDEV Mobile news
New features in WINDEV Mobile 28 presented in the New Features brochure....
General options of WINDEV, WEBDEV and WINDEV Mobile
The general options are used to configure the working environment of the product used......
Automatic Application Features (AAF) constants
List of constants used by the Automatic Application Features (AAF) functions....
Service variable
The Service variable is used to......