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.
LooperModify (Function)
Changes the values of the attributes in a row of a Looper control.
BitwiseOR (Function)
Returns the result of the (bitwise) logical OR between two values.
StatCorrelation (Function)
Calculates the coefficient of correlation between two series of values.
StatStandardDeviationP (Function)
Calculates the standard deviation for a full series of values.
Default (Property)
The Default property is used set default values.
Saving entered data (AAF)
SQL : ORDER BY clause: Organizing the result of a query
The ORDER BY clause is used to sort the records selected by an SQL query......
AAFs available for numeric edit controls
proposing the "Calculator" option. the ability to modify the control value with the mouse wheel....
Type (Property)
The Type property is used to get: the type of element (data file or item) defined...
Declaration (Property)
The Declaration property is used to define a type.
SNMPGet (Function)
Reads one or more values of an agent with which an SNMP session was started.
CombinationFromValue (Function)
Returns a combination of one or more options known by their associated values.
ArcTan2 (Function)
Returns the arc tangent 2 of the values passed in parameter.
MemcachedGetKeyGroup (Function)
Retrieves the values of keys stored on a group of Memcached servers.
<Chart>.Interval (Function)
Indicates the interval between values on the vertical and horizontal axis of a chart.
StatAverageDeviation (Function)
Calculates the average deviation of values in relation to their arithmetic mean.
StatAverage (Function)
Calculates the arithmetic, geometric or harmonic mean for a series of values.
HResetGroup (Function)
Initializes the structure for group management (HGroup) with the default values.
HResetUser (Function)
Initializes the structure for user management (HUser) with the default values.
grInterval (Function)
Indicates the interval between values on the vertical and horizontal axis of a chart.
SchedulerReset (Function)
Populates the ScheduledTask and/or TriggerScheduledTask structures with the default values....
Null (Reserved word)
The Null keyword can be used according to different methods in WLanguage......
Start of Break block (Break header)
The Start of break block is optional......
Test of a query
The query editor allows you to run the test of query result......
Handling a Spin control through programming
WINDEV allows you to handle a Spin control through programming......