When added to the web-development features of Visual DataFlex, the AJAX Library helps developers build Rich Internet Applications (RIA) for delivering next generation web business solutions - fast & easy!
The AJAX Library enables developers to make their web applications more feature-rich and better looking. The Library includes both the foundation for building AJAX (or Web 2.0 applications), as well as a sample application that shows developers how to do it.
Download the AJAX Library for Visual DataFlex.
| “Libraries” are a feature of Visual DataFlex designed to make sharing common source code resources across all of a developer’s workspaces and between multiple computers and developers easy and flexible.
The AJAX Library produces browser-based web applications using XHTML, Cascading Style Sheets (CSS), JavaScript and XML. Using the new AJAX library classes, browser-based applications are controlled by server-side Visual DataFlex objects. These classes, which manage the web pages and control your business rules, are all assembled as a web application that runs on the Visual DataFlex Web Application Server.
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The AJAX library consists of Visual DataFlex classes for the server, and client-side JavaScript classes, CSS files and templates for the browser. Web application pages running in a browser are updated dynamically using web-services. This allows for page content to be updated without needing to regenerate and refresh the entire page. The result is faster, better looking web applications.
Client pages created with the AJAX Library are also “intelligent” - they take full advantage of the information provided by the Visual DataFlex data-dictionaries, allowing for better client side validations without any extra coding. New client JavaScript classes are used to create browser controls that support multi-column data entry grids, popup selection lists, tab-pages and much more. All of this is created with just a few lines of application code. The libraries and the framework take care of all the rest.
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The AJAX Library can be quickly added to existing Visual DataFlex web applications to create new applications. The AJAX classes can save developers literally years of development time by making it easier to move a Windows desktop application with all of its rich capabilities to the web. Because it uses the Studio’s library import capability, adding the AJAX library to the Visual DataFlex development environment is quite simple.
Support for Libraries, including the AJAX Library, is only available for Visual DataFlex revision 12 or later revisions.
Download the AJAX Library.
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AJAX Library for Visual DataFlex