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.
HTMLClassDelete (Function)
Deletes a class from the HTML classes of a control.
StatStandardDeviation (Example)
Usage example of the StatStandardDeviation function
StatAverageDeviation (Example)
Usage example of the statAverageDeviation function
gglEmail (Type of variable)
The gglEmail type is used to describe and modify the email address of a contact...
HTMLClassAdd (Function)
Adds a class into the HTML classes of a control.
Icon (Type of variable)
The Icon type is used to define the advanced characteristics of an icon.
SIPAddress (Type of variable)
The SIPAddress type is used to define the advanced characteristics of a SIP address.
RulerVisible (Property)
The RulerVisible property is used to: Determine if a playhead is visible in a TimeLine control....
TokenAllowDuplicate (Property)
The TokenAllowDuplicate property is used to: Allow or prevent the user from entering duplicates...
Item Description (Type of variable)
An Item Description variable is used to describe one or more items in a data file programmatically.
Testing and debugging a WINDEV project on the user computer
WINDEV offers multiple possibilities to test and debug a project directly on the development...
HAdd (Function)
Adds: the record found in memory into the data file (query or view). the record found...
Copying and cloning
Variables are copied using the "=" operator...
The Java Applet control
A Java Applet control allows you to easily include Java Applets in your WEBDEV sites......
Reading an email
This help page explains how to read an email from a WINDEV application and how to display...
WDLog: Viewing a log file
WDLog is used to view the content of a log file......
ResourceWidth (Property)
The ResourceWidth property is used to get and change the width of resources in a Scheduler control...
TableBreakIndex (Example)
Use example for the TableBreakIndex function
WLanguage procedure called by fCopyDir
WLanguage procedure ("callback") called by fCopyDir for each copied file. This procedure is used...
HReadPrevious (Function)
Sets the position on the previous record of a file according to a browse item.
Report controls
Several types of controls can be handled in a report created by the report editor......
<Edit>.DeleteToken (Function)
Deletes a token from a "Text token" Edit control.
9. Types of standard controls
Types of standard controls...
Automatic data file modification: new date format
From WINDEV 7 and WEBDEV 7 version 149, new date and time formats are available for the Hyper File...
FocusOnClick (Property)
The FocusOnClick property is used to: Determine if a control gains focus when clicked. Allow...