ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Carrying over the differences from an element to another one
The project comparator is used to compare two elements and to list the differences found...
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Example for creating a select query
This help page explains how to create two select queries...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query...
Query: Displaying the records corresponding to a given period
When a "Date" item is found in the query, you have the ability to only select the records corresponding to a given period...
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Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
Joins between the tables of a select query
When several tables are used in a query, the query editor automatically searches for the links between these tables described in the database schema...
Project comparator
Comparing two windows (two pages, two reports, two classes, ...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Creating a query
Two methods can be used to create a query...
Creating a select query
A select query (corresponding SQL statement...
Test of a query
The query editor allows you to run the test of query result...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
Result of a query in test mode
After its execution in test mode (see Running the query test), the result of the query can be...
Environment of the query editor
When creating a class in the code editor, the Constructor and Destructor methods are automatically created by default...
Items used in a select query
A query created in the query editor can contain several types of items...
Creating an insert query
An insert query (corresponding SQL statement...
DateValid (Function)
Checks the validity of a date between January 01 0001 and December 31 9999.
Using an external component in an application
A component can be reused at any time in any application......
Pre-launched sessions
A pre-launched session is a website (or web service) session launched automatically on the web server from the WEBDEV Application Server......
Password (Property)
The Password property sets and changes the password.
Automatic feature for copying forms
When typing several copies of a form one after another, some of the information to type may be the same for each instance of the form......
Message text file format
The text files created by WDMSG use a specific format......
Interactive notification management constants
Interactive notification management constants...
LooperAddIP (Function)
Adds a row as an internal page at the end of a Looper control populated programmatically.
ListDeleteAll (Function)
Clears a List Box, ListView or Combo Box control populated programmatically.
TableMode (Function)
TableMode is kept for backward compatibility.
TableInsertLineWithAnimation (Function)
Inserts a row into a Table control or into a TreeView Table control with an animation.
Duration (Type of variable)
The Duration type enables you to easily handle the intervals of dates and times...
Associating documents with the project
To describe a project in detail, you can associate documents with it......
TableInsert (Function)
Inserts a row into: a Table control, a TreeView Table control, a table displayed in a Combo Box control....
URL Rewriting
URL Rewriting is a technique used to improve SEO......
The different types of integers
dText (Function)
Draws a text: in an Image control, in an Image variable, in a WDPic variable (on the background layer), in a picLayer variable....
Managing the critical sections
Semaphores are used to limit the simultaneous execution of a code (procedure, line of code, etc....
Fixed array (Variable type)
A fixed array is an "advanced" type of array...