ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

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...
HSuggestKey (Function)
Returns a list of keys to add to data files to improve query performance.
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
Project comparator
Comparing two windows (two pages, two reports, two classes, ...
Creating a query
Two methods can be used to create a query...
Items used in a select query
A query created in the query editor can contain several types of items...
Sort order of records found in a select query
To make the result of a query easier to read, the records can be sorted according to one or more items...
Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Create an insert query
An insert query (corresponding SQL statement...
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...
Joins between the data files of a select query
When several data files are used in a query, the query editor automatically searches for the links between these files defined in the analysis...
Code history
The code history is used to...
Environment of the query editor
Creating a select query
A select query (corresponding SQL statement...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query...
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Select query description window
The description window of a select query includes several sections...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
Example for creating a select query
This help page explains how to create two select queries...
Modifying the values displayed in the result of a select query
In the result of a select query, you have the ability to only display...
Test of a query
The query editor allows you to run the test of query result...
Select query: Displaying the first/last n records
The editor of Select queries is used to limit the number of records that will be displayed in the result of the query.
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file...
Creating a delete query
A delete query (corresponding SQL statement...
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...
StringDelete (Function)
Deletes: all the occurrences of a substring within a string. part of a string within another string. The part of the string to remove is identified by its position and length....
PunctuationSensitive (Property)
The PunctuationSensitive property is used to determine if punctuation characters (comma, period, etc.) are taken into account in the different searches performed on the item (with HReadSeek, HReadSeekFirst and HReadSeekLast, for example).
InitWindow (Function)
Initializes (or not) the controls to zero and runs the initialization processes of the controls and the window.
grDestinationControl (Function)
Defines an Image control as destination of a chart.
How to avoid displaying the URL of WEBDEV pages in the browser?
By default, when the user connects to a site developed with WEBDEV, the address bar of the browser contains an address in the following format......
Server (Property)
The Server property is used to manage the data source of a connection (HFSQL Client/Server, OLE DB, etc.)....
Types of charts available
WINDEV, WEBDEV and WINDEV Mobile propose different types of charts......
In-App purchases
The mobile systems (Android/iOS) allow their applications to propose content at extra cost, by using the payment system of App Store or Google Play......
The Organization Chart control
The Organization Chart control is used to represent elements in a hierarchical way. For example: the contributors of a company according to their position. the different branches of a group with their inter-dependencies. the different steps of a manufacturing process, ......
HSeekFirst (Function)
Positions on the first file record whose value for a specific item is greater than or equal to a sought value.
Software Factory
The concept of software factory is used to automate the process for creating applications....
Page-by-page deployment
You now have the ability to deploy site sections or individual pages......
InitialContent (Property)
The InitialContent property gets the initial content: of a List Box control populated programmatically. of a Combo Box control populated programmatically. of a "List of values" column in a Table control. in a Spreadsheet control....
TableToXML (Function)
Creates an XML file from the data found in a Table or TreeView Table control.
Abs (Function)
Returns the absolute value: of a numeric value, of a numeric expression (integer or real). of a duration....
FTPCurrentDir (Function)
Identifies or modifies the current directory on an FTP server (File Transfer Protocol).
HSetPosition (Function)
Sets the position on a record, based on the approximate position of one of its items.
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......
Android Widget windows
An Android application can contain one or more Widget windows......
SEO-ready page in session mode
In WEBDEV, there are two methods to develop a site......
2. Analysis in practice
Project dashboard
The project dashboard provides an overall view of project status via different widgets.......
HTransaction (Function)
Starts a transaction on the data files (HFSQL or accessed via a Native Connector) and creates the transaction file.
ReturnedValue (Property)
The ReturnedValue property is used to: Get and change the value returned by a window, page or report. Get and change the value returned by an option in a Radio Button control....