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)...
Advanced types
The advanced types of WLanguage are as follows
<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.
WLanguage types
The different types in WLanguage are...
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.
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.
Assignment operators
Three assignment operators are available...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Constant
The constants are language elements whose value is fixed once and for all...
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
pdfSignature (Type of variable)
The pdfSignature type is used to define the advanced characteristics of the signature that will...
appServerScheduledTask (Type of variable)
The appServerScheduledTask type is used to manage a scheduled task of WEBDEV Application Server...
mongoConnection (Type of variable)
The mongoConnection type is used to define the advanced characteristics of a connection...
mongoDatabase (Type of variable)
The mongoDatabase type is used to define the characteristics of a database for a MongoDB server.
mqttSession (Type of variable)
The mqttSession type is used to define the parameters for connecting to the MQTT broker.
mongoCollection (Type of variable)
The mongoCollection type is used to define the advanced characteristics of a collection...
hbConnection (Type of variable)
The hbConnection type is used to define the characteristics of a connection to a HBase server.
hbTableDescription (Type of variable)
The hbTableDescription type is used to define and find out the characteristics of an HBase table.
hbColumnDescription (Type of variable)
The hbColumnDescription type is used to define the advanced characteristics of a group of columns...
hbColumn (Type of variable)
The hbColumn type is used to define the advanced characteristics of a column (item) in a HBase...
hbReading (Type of variable)
The hbReading type is used to define the characteristics of a read operation.
hbCell (Type of variable)
The hbCell type is used to define the advanced characteristics of the content of a cell (item...
hbWriting (Type of variable)
The hbWriting type is used to define the characteristics of a write operation that will...
hbScanParameter (Type of variable)
The hbScanParameter type is used to define the parameters for iterating over the records...
hbResultScan (Type of variable)
The hbScanResult type is used to define all the advanced characteristics of the result...
fbSession (Type of variable)
The fbSession type is used to describe a connection to the Facebook service and to manage...
mongoDatabaseInfo (Type of variable)
The mongoDatabaseInfo type is used to define the advanced characteristics of information...
mongoCollectionOption (Type of variable)
The mongoCollectionOption type is used to define the advanced characteristics of collection options...
mongoFindOption (Type of variable)
The mongoFindOption type is used to define the advanced characteristics of a search in a MongoDB...
mongoResult (Type of variable)
The mongoResult type is used to find out the result during a search performed in a MongoDB...
mongoGridFSFileInfo (Type of variable)
The mongoGridFSFileInfo type is used to define the advanced characteristics of a file in a MongoDB...
Document (Type of variable)
The Document type is used to handle a "docx" document.
hServerOperation (Type of variable)
The hServerOperation type is used to get the characteristics of an operation performed on an HFSQL...
docFragment (Type of variable)
The docFragment type is used to define the characteristics of a fragment found in a "docx"...
docParagraph (Type of variable)
The docParagraph type is used to handle the characteristics of a paragraph in a DOCX document.