How to create VDF Web Applications: Difference between revisions

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{{underconst}}
= Introduction =


asp pages are about creating HTML markup to interface serverside code .  This means that asp is not a real programming language - it is about creating html.
This page describes the technologies available to create web applictions using Visual DataFlex.  


to write asp "code" then you need to use a scripting language like:
= Getting started =


*[http://en.wikipedia.org/wiki/VBScript vbscript]
To be able to develop ASP pages , then you need [http://en.wikipedia.org/wiki/Internet_Information_Services Internet Information Server]. The most easy way to get that these days is to grab Microsofts Web Platform installer here :
*[http://en.wikipedia.org/wiki/JScript]


typical use of ASP includes usage of serverside components. You can write these using Visual dataflex.
http://www.microsoft.com/web/channel/products/WebPlatformInstaller.aspx


= serverside =
This tool will provide you with a full stack for developing asp related things. It will also keep track of certain things you need to enable on Windows Vista and Windows Server 2008.
*Web Business Process (these things gets registered and you can access them in asp)
 
You will also need to install [[Webapp server]] from the [[Portal:Visual DataFlex]] installer. Note that you will need version 14.1 to support the windows 2008 server.
 
== Putting on your [http://www.professorsolomon.com/thinkingcap.html Thinking cap]==
 
Grab your [[DataDictionary|Data Dictionaries]] from your old application and expose these using Web Objects .
 
*WBO
*Global.asa (this is where your code is stackup up. check the list of WBP's there)
*Global.asa (this is where your code is stackup up. check the list of WBP's there)




= In the trenches =


= clientside =
*[[EnablingJSONIN]]


NOTE: currently there are no direct support for editing these things in the Visual DataFlex Studio
 
== Validation ==
Here are some good links for validating :
*[[HTML]] ( validate here: [http://validator.w3.org/]  )
*[[HTML]] ( validate here: [http://validator.w3.org/]  )
*[[CSS|Cascading Style Sheets]] ( validate here: http://jigsaw.w3.org/css-validator/ )
*[[CSS|Cascading Style Sheets]] ( validate here: http://jigsaw.w3.org/css-validator/ )
*[[Javascript]] ( validate here: http://www.jslint.com/ )
*[[Javascript]] ( validate here: http://www.jslint.com/ )


Quirksmode.org offers valuable resources for web development:
== Styling using css ==
*[http://www.quirksmode.org/js/contents.html quirksmode javacript]
 
*[http://www.quirksmode.org/css/contents.html quirksmode css]
Using css for styling can help you if you don't like doing design yourself!  If you style using css then somebody else can do the design for you.


= Text Editors =
*start your adventure here: [http://www.w3.org/Style/CSS/ css]
*[[Notepad++]] (Programmer's text editor)
*go here when something goes wrong: [http://www.quirksmode.org/css/contents.html quirksmode css]
*[[TextPad]]
*[[TopStyle]] (Tool for creating standards-compliant sites)


== Javascript on the client ==
[[Javascript]] can be good for validating what the user enters on the screen. It can also be good for fancy [[AJAX]] techniques.






[[category: Web Programming]] [[Category:Stub]] [[Category:Cookbook]]
[[category: Web Applications]] [[Category:Stub]] [[Category:Cookbook]]

Latest revision as of 15:08, 8 April 2020

Introduction

This page describes the technologies available to create web applictions using Visual DataFlex.

Getting started

To be able to develop ASP pages , then you need Internet Information Server. The most easy way to get that these days is to grab Microsofts Web Platform installer here :

http://www.microsoft.com/web/channel/products/WebPlatformInstaller.aspx

This tool will provide you with a full stack for developing asp related things. It will also keep track of certain things you need to enable on Windows Vista and Windows Server 2008.

You will also need to install Webapp server from the Portal:Visual DataFlex installer. Note that you will need version 14.1 to support the windows 2008 server.

Putting on your Thinking cap

Grab your Data Dictionaries from your old application and expose these using Web Objects .

  • WBO
  • Global.asa (this is where your code is stackup up. check the list of WBP's there)


In the trenches


Validation

Here are some good links for validating :

Styling using css

Using css for styling can help you if you don't like doing design yourself! If you style using css then somebody else can do the design for you.

Javascript on the client

Javascript can be good for validating what the user enters on the screen. It can also be good for fancy AJAX techniques.

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