PC SOFT

WINDEVWEBDEV AND WINDEV MOBILE
ONLINE HELP

Home | Sign in | English UK
  • The WEBDEV session
  • The page contexts
  • Programming
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadApple WatchUniversal Windows 10 AppWindows Mobile
Others
Stored procedures
5. Principle for displaying a WEBDEV Session site
Previous pageTable of contentsNext page
The WEBDEV session
The following operations are performed when displaying a WEBDEV page in Session mode:
  1. Request page display.
  2. Start WEBDEV engine. This engine will remain on the server until the end of application.
  3. Create the application context. This context will remain on the server until the end of application.
  4. The WEBDEV engine runs the server code and builds the HTML page (from the data found in the database for example).
  5. Once the HTML page is entirely built, the server transmits the result to the client (the browser).
The page contexts
A page context is automatically created on the server whenever a page displayed in the browser. This page context contains all elements that have been required to build the page viewed by the Web user:
  • the global variables,
  • the local variables,
  • the server processes,
  • the connections to the databases,
  • the contexts of data files, ...
The page contexts remain in memory on the server until the end of the WEBDEV session.
If the same page is called several times:
  • If PageDisplay is called to display the page, the page context is destroyed and re-created.
  • If PageRefresh is called to display the page, the same page context is re-used.
Programming
The WEBDEV session and the page contexts are automatically managed by default. You don't need to program anything.
Previous pageTable of contentsNext page
Minimum version required
  • Version 23
Comments
Click [Add] to post a comment