ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

How to create an SQL query with a calculation formula?
This help page explains how to create a query with a calculation formula with the query editor....
Error 111: The Pascal string %1 is too long
BitcoinCoreBlockCount( Function)
Returns the size of the blockchain known by the Bitcoin node (i.e. the number of blocks created since January 3, 2009). This makes it possible, for example, to calculate the approximate date of the next halving.
Analysis links
The links are used to link the files found in an analysis between themselves......
Navigation map
The site map path is used to implement the structure and the sequence of pages in your site......
Native Progress Connector: Programming with SQL functions
The use of SQL functions to handle Progress data does not require importing the file structure into the analysis......
WDStatistics: Configuring the WEBDEV administrator
To create the log files required to calculate the statistics for site traffic, a specific setting must be performed in the WEBDEV administrator......
Class diagram
A class diagram describes the structure of a system via classes and the relationships among them......
Checkers available in the code editor
The code editor proposes several tools used to correct the code......
1. Analysis: Database structure
When a WINDEV, WEBDEV or WINDEV Mobile project uses data files, it must be associated with an analysis....
Multiple assignments of arrays, structures and classes
The multiple assignment of arrays consists in assigning a set of simple values (boolean, integer, string, real, numeric or currency) to the cells of an array. This multiple assignment is also available for the structures and the classes....
Message
The Message keyword can correspond to: the Message function. the Message property, which is used to get and change the help message of a control or menu option in a window. the Message property available for: a SFError variable. the email structure. an Email variable. a Notification variable....
Handling an iFrame control through programming
WEBDEV allows you to handle an iFrame control by programming......
InterpretAmpersand (Property)
The InterpretAmpersand property is used to determine and change how the '&' character is interpreted in: the caption of a Static control. the elements of a List Box control. the elements of a Combo Box control. the values of a column in a Table control....
2. Projects in practice
Discover the main operations that can be performed on a project....
Error 531: The negative or null subscripts are not allowed
Native DB2 Connector : Programming with SQL functions
The use of SQL functions to handle DB2 data does not require importing the file structure into the analysis......
Object diagram
An object diagram represents a set of objects and how they relate to each other at a certain moment in time......
Sending elements to Free Technical Support
Associating an identifier with an element found in a TreeView control
The different methods to associate an identifier with an element found in a TreeView control....
NULL values in HFSQL
WINDEV, WEBDEV and WINDEV Mobile allow you to manage the NULL value in the items of HFSQL data files and for all the other types of accesses (Native, OLE DB, ......
Preset page templates
The preset page templates provide some structures of pages corresponding to a wide range of sites and they also improve the re-usability and the graphic harmony between the projects......
INIRead (Function)
Reads the content of an INI file (or the content of a file structured like .INI files).
WDConver : Overview
WDConver is a tool used to convert data to an HFSQL Classic data file from......
Character strings
WLanguage supports different types of strings....