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.
List,Select,? (External language)
Returns the element selected in the list.
Error 110: The ASCIIZ string is too long
Error 109: The fixed string is too long
FinError (Example)
Usage example of the FinError function
FinLinearRedemption (Example)
Usage example of the FinLinearRedemption function
Designing a supercontrol
A supercontrol is an advanced type of control......
Handling a Check Box control through programming
WINDEV, WINDEV Mobile and WEBDEV allow you to handle a Check Box control through programming......
SysRecentDocList (Function)
Returns the list of recently opened documents.
SNMP constants
List of constants used by the SNMP functions....
Native MariaDB Connector: Specific features
The Native MariaDB Connector creates "InnoDB" tables to support locks and transactions on a MariaDB...
How to manage a multi-selection in a Table control?
This help page explains how to manage a multi-selection in a Table control....
Native MySQL Connector: Specific features
The Native MySQL Connector (also called "Native MySQL Access") creates "InnoDB" tables to support...
Drawer control properties
List of properties associated with the Drawer control...
notificationCategory (Type of variable)
The type notificationCategory makes it possible to define all the advanced characteristics...
Error 111: The Pascal string %1 is too long
Events associated with supercontrols
List of events associated with supercontrols...
Radio Button control properties
List of properties associated with a Radio Button control...
Event (Function)
Intercepts a Windows event on a control, a group of controls or a WINDEV window.
Using a query with parameters
A query with parameters can be used......
The "Modifier"pane
The "Modifier" pane is used to view and/or modify, from the window editor, page editor or report...
Numeric (Type of variable)
The numeric type is used to contain integer or decimal numbers by specifying if necessary:...
PageRateDDW (Function)
Allows you to find out and modify the rate of gray for the pages that use DDW (Dim disabled pages).
AddColumn (Function)
Adds a column at the end of a two-dimensional array property (xlsDocument variable for example]).
Handling Spreadsheet controls programmatically (in a window)
Spreadsheet controls can be handled programmatically......
RightIndent (Property)
The RightIndent property is used to get and change the space to the right of the text in a control.