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 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.
HTMLEditorFormatSelection (Function)
Modifies the style of the selected elements in an HTML Editor control.
MatFill (Example)
Usage example of the MatFill function
LDAPFind (Function)
Performs a search in an LDAP server.
Binding a ListView control to an item
Error 809: The * character cannot be used as mandatory parameter in a function
Handling a Rich Text Area control through programming
To handle a Rich Text Area control programmatically, use the variable of the Rich Text Area control...
Events associated with the Pivot Table control
ThreadEnd (Function)
Ends the execution of the current thread.
xmlReader (Type of variable)
The xmlReader type is used to read an XML document without loading it in memory.
HFound (Function)
Checks whether the current record corresponds to the current filter or search.
Breadcrumb control properties
The WLanguage properties are used to handle the Breadcrumb control as well as one...
xmlNode (Type of variable)
The xmlNode type is used to handle a node of an XML document.
edtHTMLSelection (Type of variable)
The edtHTMLSelection type is used to identify all the advanced characteristics of a selection...
The RTF control (Report editor)
...The "RTF" (Rich Text Format) control is used to display a formatted character string...
ResourceHeight (Property)
The ResourceHeight property is used to get and change the height of resources in a Scheduler...
Handling a TreeView Table control programmatically
This page explains how to program TreeView Table controls......
WLanguage procedure called by zipAddFileList
WLanguage procedure ("Callback") used by zipAddFileList to manage the progress of files being added...
WLanguage procedure called by zipAddDirectory to handle the progress bar
WLanguage procedure ("Callback") used by zipAddDirectory to manage the progress of files...
WLanguage procedure called by zipExtractDirectory to manage progress bars
WLanguage procedure ("Callback") used by zipExtractDirectory to manage the progress of files...
The "Area" charts
The Area chart is used to highlight the amplitude of a change......
Error 34: 'Break' is not allowed outside the loops
HModify (Function)
Modifies the specified record or the record found in memory in the data file (query or view).
InvalidInputDetect (Function)
Detects and signals an error on required controls left empty and/or controls with invalid data....
HCheckStructure (Function)
Defines the mode for comparing data files.
HCopyRecord (Function)
Copies: the content of the current record (loaded in memory) to the current data file record....