ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Error 116: An array dimension must be an integer value
<Variable DiskFile>.Open (Function)
Opens an external file (ANSI or UNICODE) in order to handle it through programming.
InvalidInputListControl (Function)
Builds a list of controls that require data input/contain invalid data....
Events associated with Edit controls
WLanguage events associated with Edit controls...
Using an external component in an application
A component can be reused at any time in any application......
External language: Programming in C
We are going to call the elements developed in WINDEV (project, windows, ......
HFSQL Client/Server: Scheduled optimization
Scheduled optimization is a mechanism for automatically optimizing your database......
xlsOpen (Function)
Opens an Excel file (xls or xlsx files).
InsertColumn (Function)
Inserts a column at a given position into an advanced two-dimensional array property (xlsDocument, ...).
SQLConnect (Function)
Connects the current application to a database that must be interrogated via SQL.
Other operators
The following are additional operators......
<Variable DiskFile>OpenTempFile (Function)
Creates and opens a temporary file.
DocFindElementByName (Function)
Searches for an element by its name in a Word Processing document.
UI compilation errors
UI compilation errors indicate the possible problems detected in your interfaces whenever a window, a page or a report is saved or whenever the project is recompiled......
The Bar Code control
The Bar Code control displays bar codes in your windows, pages or reports......
Creating a .NET assembly from WINDEV
To create a.NET assembly, ......
Diagram Editor control events
WINDEV manages the following events by default (in the order in which they appear in the code editor) for the Linear Slider controls and for the Range Slider controls...
MongoDB/GRIDFS databases
MongoDB is a document-oriented NoSQL database......
HFreeQuery (Function)
Releases query resources (following use of HExecuteQuery or HExecuteSQLQuery functions).
HCancelDeclaration (Function)
Allows you to: Delete a declaration made previously using HDeclare, HDeclareExternal, HDescriveFile. After this operation, the table is no longer recognized by the HFSQL engine. Free the resources of a query (after calling HExecuteQuery or HExecuteSQLQuery)....
ArrayDeleteDuplicate (Function)
Deletes the duplicates from an array.
HTTPTimeOut (Function)
Sets the timeout for WLanguage functions that use the HTTP protocol (HTTPRequest, SOAPExecute, DotNetExecute, J2EEExecute, etc.).