ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Declaring and using a variable
A variable is defined by name and type...
Service variable
The Service variable is used to...
Report based on a variable (Data binding)
A report based on a variable is used to directly print the information found in a WLanguage variable...
Composite variable
A composite variable contains different types of elements (members)...
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Advanced types
The advanced types of WLanguage are as follows
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
IsNumeric (Function)
Enables you to find out whether a variable or a control is:
  • a numeric (integer, real, currency or numeric).
  • a string that can be converted into numeric.
WLanguage types
The different types in WLanguage are...
Constant
The constants are language elements whose value is fixed once and for all...
<Source>.Reset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
HReset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
Assignment operators
Three assignment operators are available...
DataBinding (Property)
and: an item in a data file. a variable. several variables....
The email structure
The email structure is a preset structure of WLanguage (no declaration is required)......
Handling List Box controls programmatically
WINDEV, WEBDEV and WINDEV Mobile allow you to programmatically handle List Box controls....
Hour (Keyword)
The Hour keyword can correspond to: the Time variable. the Time property which is used to get...
Second (Property)
or Duration variable. Modify the number of seconds in a Time, DateTime or Duration variable. Retrieve...
Millisecond (Property)
or Duration variable. Modify the number of milliseconds in a Time, DateTime or Duration variable. Retrieve...
CriticalSection
... it possible to enable a named or on-variable critical section in the statement USING...
AddColumn (Function)
Adds a column at the end of a two-dimensional array property (xlsDocument variable for example]).
StringToTime (Function)
... variable].
Passing parameters
The parameters can be passed to a procedure......
ErrorReset (Function)
... variable returns to False.
CountryGet (Function)
Returns the Country variable corresponding to an ISO code or to the country caption according...
Class (Property)
... variant or dynamic object variable.
HAdd (Function)
... variable into the table (query or view).