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...
<zipArchive variable>.Close (Function)
Closes an archive.
<zipArchive variable>.CurrentFile (Function)
Returns the name of the archived file currently handled by the functions for adding and extracting...
<zipArchive variable>.InfoFile (Function)
Returns the characteristics of a file found an archive: The name of the file and its stored...
<zipArchive variable>.ListFile (Function)
Returns the list of files found in an archive.
<zipArchive variable>.ExtractAll (Function)
Extracts all files from an archive and decompresses them.
<zipArchive variable>.NbPartNeeded (Function)
Returns the number of parts of a given size required to split a single-part archive.
<zipArchive variable>.Open (Function)
Opens an existing archive.
<zipArchive variable>.OpenCAB (Function)
Opens an existing archive in CAB format.
<zipArchive variable>.OpenRAR (Function)
Opens an existing archive in RAR format.
<zipArchive variable>.Merge (Function)
Merges the different sub-archives found in a multi-part archive to create a single-part archive.
<zipArchive variable>.DeleteFile (Function)
Deletes a file from an archive.
<zipArchive variable>.DeleteFileList (Function)
Deletes a list of files from an archive.
<zipArchive variable>.DeleteAll (Function)
Deletes all files from an archive.
<zipArchive variable>.FileSize (Function)
Returns the size of one of the files found in the archive (in CAB, RAR, WDZ, ZIP, 7z, TAR or TGZ...
<xlsDocument variable>.AddWorksheet (Function)
Adds or inserts a new worksheet into an Excel document.
<xlsDocument variable>.Close (Function)
Closes an XLS file.
<xlsDocument variable>.Save (Function)
Saves an XLS document.
<xlsDocument variable>.DeleteWorksheet (Function)
Deletes a worksheet from the Excel document.
<zipArchive variable>.AddFileList (Function)
Adds a list of files (of any type) into an archive in ZIP, CAB, WDZ or 7z format and compresses it.
<zipArchive variable>.Create (Function)
Creates an archive.
<zipArchive variable>.Split (Function)
Splits an archive into several sub-archives of a given size.
<emailIMAPSession variable>.AddFolder (Function)
Adds a folder into the messaging software using IMAP (Internet Message Access Protocol), ...
<emailOutlookSession variable>.AddFolder (Function)
Adds a folder into the Outlook messaging software.
<emailIMAPSession variable>.ChangeFolder (Function)
Modifies the current folder in the messaging software using the IMAP, ...
<emailOutlookSession variable>.ChangeFolder (Function)
Modifies the current folder in the Outlook messaging software.