ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Environment of the query editor
When creating a class in the code editor, the Constructor and Destructor methods are automatically created by default...
Creating a query
Two methods can be used to create a query...
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file...
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...
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...
Select query description window
The description window of a select query includes several sections...
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...
Test of a query
The query editor allows you to run the test of query result...
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query...
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, ...
Creating an insert query
An insert query (corresponding SQL statement...
Items used in a select query
A query created in the query editor can contain several types of items...
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 a combining query
A combining query (corresponding SQL statement: UNION) ...
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...
Example for creating a select query
This help page explains how to create two select queries...
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...
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...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Creating a delete query
A delete query (corresponding SQL statement...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Creating a select query
A select query (corresponding SQL statement...
The Button control
The Button control allows the user or the Web user to run a specific action with a simple click......
Sortable (Property)
The Sortable property is used to: Determine if a Table control column is sortable. Make a column of a Table control sortable or not....
ControlDelete (Function)
Permanently deletes a control from a window, page or report.
grDestinationWMF (Function)
Defines a meta file as chart destination.
Testing a Java project and compiling it
When your Java application is developed, you can run the test of the Java project and compile it before creating the archive......
Handling Context Menu controls programmatically
WEBDEV includes different WLanguage functions and properties to handle Context Menu controls programmatically......
The Flexbox control
Flexbox is a standard layout system for web pages......
Word processing: Using the ribbon
The ribbon found in the Word Processing control proposes several features and it allows you to perform several settings......
Events associated with control templates
List of events associated with control templates...
Definition (Type of variable)
The Definition type is used to find out the characteristics of a type: simple type, advanced type, class, structure....
8. 10 tips for better interfaces...
Importing classes and sets of procedures (text file)
From version 23, you have the ability to import existing classes or sets of procedures in text format......
NdxEncryption (Property)
The NdxEncryption property is used to configure the encryption method for the index (.NDX) file associated with the data file.
Native xBase/FoxPro Connector
WINDEV and WEBDEV propose a Native xBase/FoxPro Connector (or Native xBase/FoxPro Access) module......
ControlInvisible (Function)
Makes a control (or a group of controls) invisible in a window. An animation can be set on the controls during this operation.
OrganizerDeleteAppointment (Function)
Deletes an appointment from an Organizer control.
OrganizerMode (Function)
Returns the display mode of an Organizer control: day, week, month, ...
JavaExecute (Function)
Starts a Java application or a Java applet by invoking the "Main" method of a given Java class.
fMoveDir (Function)
Moves a directory and its content.
Middle (Function)
Extracts: a substring from a string starting at a specified position. part of a buffer starting at a specified position....
TimeDifference (Function)
Calculates the difference between two times in hundredths of a second.
IntegerToDate (Function)
Converts an integer into a date in YYYYMMDD format.
HSortView (Function)
Sorts an HFSQL view by creating an index on a view item. This function uses the former view mechanism.
fClose (Function)
Closes an external file.
Shape control properties
Shape controls in windows, pages and reports can be handled using different WLanguage properties......