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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

NULL values in HFSQL
WINDEV, WEBDEV and WINDEV Mobile allow you to manage the NULL value in the items of the HFSQL data files and for all the other types of accesses (Native, OLE DB, ...
Max (Function)
Returns the greatest value passed as parameter.
<ANSI string>.ToNum (Function)
Returns the numeric value of a character string. This feature enables you to perform numeric calculations on strings.
<Source>.BuildKeyValue (Function)
Builds the value of a composite key to implement a filter (HFilter) or to perform a search (HReadSeekFirst, HReadSeekLast, etc.).
HBuildKeyValueANSI (Function)
Whatever the platform used, the data stored in HFSQL data files is in ANSI format.
StringToNum (Function)
Returns the numeric value of a character string. This feature enables you to perform numeric calculations on strings.
HBuildKeyValue (Function)
Builds the value of a composite key to implement a filter (HFilter) or to perform a search (HReadSeekFirst, HReadSeekLast, etc.).
ChronoValue (Function)
Indicates the time elapsed (in milliseconds) since the call to ChronoStart.
LocalStorageGet (Function)
Retrieves a value from the local storage.
Val (Function)
Returns the numeric value of a character string.
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
<Array>.Min (Function)
Returns the lowest value in the array.
Min (Function)
Returns the lowest value.
Data persistence
The data persistence is used to store the value typed by the user...
<Array>.Max (Function)
Returns the greatest value in the array.
SQLColumn (Function)
Returns the characteristics of all the columns (or items): for a given table. for a given...
The "Pie", "Donut" or "Semi-circular" charts
Several types of charts belong to the same family......
Deserialize (Function)
Deserializes a buffer or a character string containing the data from a class, structure, array...
OLE DB provider for HFSQL
The OLE DB provider on HFSQL is used to access an HFSQL database (Classic or Client/Server)...
8. Windows in practice
Discover the main actions that can be performed on the windows....
Setup directory
The setup wizard allows you to configure the setup directory of application....
GroupNext (Function)
Reads the group of contacts found after the current group in the address book of a Lotus Notes...
Table,Save (External language)
Updates or adds a record in the data file linked to the Table control.
HFSQL constants
List of constants used by the HFSQL functions....
Process (Type of variable)
The Process type is used to define the characteristics of the remote application that can...
Merge (Property)
The Merge property is used to merge the cells of a Table or TreeView Table control.
NFC constants
List of constants used by the NFC functions...
REST Webservices: Automatic deserialization of request
In a REST Webservice, an entry point can have several types......
Using C# code
You can use C# code in WINDEV applications (Windows applications and components, .NET assemblies......
ExecuteRefreshUIParent
Immediately executes the "Request for refreshing the display" event of the parent.
UploadCopyFile (Function)
Saves on the server a file "uploaded" by the Web user. This upload may have been performed: via...
Creating an automatic help
The Automatic Application Features (AAF) allow you to add features to your application without...
iInitReportQuery (Function)
Initializes the query linked to the report (for a query with parameters).
xlsDocument (Type of variable)
An xlsDocument variable is used to describe and modify an Excel document...
sysNotification (Type of variable)
The sysNotification type is used to define all the advanced characteristics of an interactive...
2. Layouts: Managing menus
WEBDEV Tutorial - WEBDEV layouts Lesson 2 - Layouts: Managing menus - 30 min
HExportCSV (Function)
Exports the records found in a data file (HFSQL or OLE DB), a view or a query to a CSV file.
Operators on character strings
The character strings can be handled by specific WLanguage functions...
Handling HTML text in an Edit control
...WEBDEV allows you to handle text in HTML via the "HTML format" option of the Edit controls...
Managing the certificates
Signing a file allows you to check that the file was not modified or altered since it was signed....