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...
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.
Assignment operators
Three assignment operators are available...
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...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
<Array>.DeleteLine (Function)
Deletes a row at a given position: from a two-dimensional array. from the advanced array...
<Array>.InsertLine (Function)
Inserts a row at a given position: into a two-dimensional WLanguage array. into an advanced...
Constants used by the functions for managing countries and continents
<Array>.MoveLine (Function)
Allows you to: move a row in a two-dimensional array or in an advanced array property....
ArrayInsertLine (Function)
Inserts a row at a given position: into a two-dimensional WLanguage array. into an advanced...
MongoDeleteOne (Function)
Deletes a document from a collection in a MongoDB database.
TimeLine control events
The following events appear by default in the WINDEV code editor...
QuickActionPin (Function)
Generates a request to pin a quick action.
HTMLInsertAfter (Function)
Adds a node after the specified node in an HTML document.
ArrayDeleteLine (Function)
Deletes a line at a given position: from a two-dimensional array. from the advanced array...
ArrayMoveLine (Function)
Allows: move a row in a two-dimensional array or in an advanced array property. The other array...
DeleteLine (Function)
Deletes a line at a given position: from a two-dimensional array. from the advanced array...
MapDisplayPosition (Function)
Centers the map displayed in a Map control on a geographical position or on a specific location.
LinestringGeoAddPoint (Function)
Adds a new point to a geographic linestring.
MongoModifyAll (Function)
Modifies documents in a collection of a MongoDB database.
ArrayAdd (Function)
Adds an element in last position: of a one-dimensional WLanguage array. of an advanced array...
<PDF reader>.NbSignatures (Function)
Gets the number of signatures in a PDF Reader control.
Add (Function)
Adds an element in last position: of a one-dimensional WLanguage array. of an advanced array...
EmailSaveAttachment (Function)
Copies the attachment of current email onto the user computer (locally).
MongoDeleteCollection (Function)
Deletes a collection from a MongoDB database.
DocInsertTable (Function)
Inserts a table into a Word Processing document.
ArrayAddLine (Function)
Adds a row at the end: of a one- or two-dimensional WLanguage array. of an advanced...
EmailUpdate (Function)
Updates the messages of MS Exchange according to the email server.
BTLEGetAllCharacteristics (Function)
Retrieves all the characteristics (with the same identifier) associated with a BLE service.