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.
"Debugger trace" pane
The "Debugger trace" shows the messages displayed in the trace window during the last application...
Creating an insert query
An insert query (corresponding SQL statement......
Currency + Euro type
to enter or display currency values......
Type of item: Secure password
"Password" items are used to securely store passwords by using a salt and a hash algorithm......
Debugger: Running a project step by step
Running a project step-by-step allows you to start the debugger when launching the application......
Description window of query (insert, update or delete) or description window of a query in SQL code
The description window of a query (insert, update or delete) or the description window of a query...
8. Associating controls with data
Automatic completion
The automatic completion helps you write WLanguage code in your applications......
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file......
Infinite Table and Looper controls
There are two methods to populate Table and Looper controls programmatically......
13. Types of standard controls
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...
Type and version of Web server
The configuration diagnostic displays the following error......
Filtering a data file, a view or a query
A filter is used to define by programming a selection of records corresponding to one...
Binding controls to data
A window or page can display information from......
Skins
The skins are used to standardize the visual aspect of a site and they allow you to easily change...
Name (Property)
The Name property is used to get the name of an element.
Creating a select query
A select query (corresponding SQL statement......
11. Choosing the action of a button/link
Appendix 3: Configuration file
Bloque entièrement ou partiellement un fichier externe....
LowerValue (Property)
The LowerValue property is used to: Get the lower bound of the interval currently selected...
UpperValue (Property)
The UpperValue property is used to: Get the upper bound of the currently selected interval...
Handling a Control Template control through programming
The "Control template" control is used to display an existing control template......
Handling a WEBDEV Slider control through programming
WEBDEV allows you to handle a Slider control through programming....
Scanner (Type of variable)
The Scanner type is used to handle the information from a scanner.