AJAX Library for Visual DataFlex

Visual DataFlex Studio has a library that can be used to develop AJAX web applications available from http://www.visual-dataflex.co.uk/1seater.asp?pageid=948

Ok. now you are hooked. and you want to start using the AJAX library . This page is about that.

If you are here , then you probably want to develop a web solution. We will asume that you know How to develop ASP pages .

Introduction

The goal of the Visual DataFlex AJAX library is to bring the experience from the Window version of Visual DataFlex to the web using AJAX techniques.

You probably allready now how to create a datamodel Using DataDictionaries from earlier Visual DataFlex programming experience. Now just attach you DataDictionaries Using AJAX Web Browser Objects - this brings your existing datamodel to the ajax world. ( See AJAX Rating Example for how to do that ).

Howtos

• Adding the AJAX Library to your application
• Creating a AJAX Web application
• Using AJAX Web Browser Objects
• Creating a AJAX Form
• AJAX Remote Method Invocation

Typical problems

• if you get a http 500 , then you probably forgot to copy the files from the the AppHtml dir in the AJAX library to your project .
• remember to set the correct access rights on your asp files.
• Remember to have the same version installed on the server and in the webapplication AppHtml directory

Stuff you need to know

• Using DataDictionaries
• Using the AJAX Library
• How to develop ASP pages

Examples

• AJAX Rating Example