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.
How to populate a Table control programmatically?
This help page presents the different methods that can be used to populate a Table control...
Modbus constants
Constants used by the Modbus management functions....
TotalNbRec (Property)
The TotalNbRec property is used to: Get the number of records to be printed. Change...
OpenPopup (Function)
Opens a popup window and waits for this window to be closed.
xmlAttribute (Type of variable)
The xmlAttribute type is used to handle the attributes of a node in an XML document.
grAddData (Function)
Adds a data into a chart.
OpenIDParameters (Type of variable)
The OpenIDParameters type is used to define all the advanced features of an authentication...
gglLocation (Type of variable)
The gglLocation type is used to describe and modify the location of an event found in a Google...
Null (keyword)
The "Null" keyword can correspond to:
DDEWarmLink (Function)
Creates a warm link with a data.
Native SQL Server Connector: Specific features and remarks
The following paragraphs present the main aspects and specific features of the Native SQL Server...
List of extension attributes
The list of extension attributes ......
InvalidInputShowIcon (Function)
Shows an error icon next to an Edit control to indicate that the input is invalid.
DDELink (Function)
Creates a hot link with a data.
NetworkDisconnect (Function)
Disconnects a network drive.
ObserverOrientation (Property)
The ObserverOrientation property gets or sets the secondary angle of a Carousel control.
FinNetCurrentVal (Example)
Usage example of the FinNetCurrentVal function
Duration (Type of variable)
The Duration type enables you to easily handle the intervals of dates and times...
TableSearch (Function)
Performs a search in: a Table control, a TreeView Table control, a table displayed...
Assisted HFSQL error handling
WINDEV, WEBDEV and WINDEV Mobile include a module for assisted management of HFSQL errors......
Operating mode of dynamic Active WEBDEV Pages
ArrayToCSV (Function)
Converts a one-dimensional array or a two-dimensional array into a character string in CSV format.
LooperInsert (Function)
Inserts a row into a Looper control.
Chart constants
List of constants used by the functions for chart management....
Handling a Sliding Banner control through programming
A Sliding Banner control can be handled through programming......