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EGL is just as client centric as, say, powerEXT. PowerEXT uses Ext JS. EGL uses Dojo. Both are good frameworks, and each has strengths and weaknesses. Here's a good discussion:

http://bockuscentral.com/gordonbockus/?p=9

But since EGL is a framework that's designed to be extensible, you could always extend the widgets to support other frameworks if you choose. For example, IBM includes several of its own widgets that do things Dojo doesn't do. Can powerEXT support Dojo?

More important, though, is that EGL is designed to allow you to create your own widgets on top of the base framework. I have data-aware dropdowns, for example, that load themselves from data on the host. I have prompt widgets that include the label and an editable field. I designed an entire framework for fields that can be selected from a data grid loaded from the host. I can add a database driven promptable field to a UI with a single line of code.

And just as important, while those widgets use SQL today, I could modify them to load from a web service if I so desired. And this would be completely transparent to the application. Future proof!!!

Joe

@Joe,

the problem is that like in an android/iOS app that has their own SDK EGL
dosn't support
a wide range of other client frameworks like EXT JS or Sencha Touch.

EGL is server centric while the world is moving towards client centric


On Tue, Mar 13, 2012 at 4:22 PM, Joe Pluta<joepluta@xxxxxxxxxxxxxxxxx>wrote:

On 3/13/2012 7:47 AM, john e wrote:
Anyway, i suppose you don't have to use "data aware" widgets (controls)
if
you don't want to.
EGL can be used to implement an MVP style architectue.
But then you have a completely different story than in the Demo room.
And why choose EGL then (because this is one of the "unique" selling
points).
Have you actually tried the new open source EGL? The WYSIWYG editor
creates widgets with varying degrees of MVC depending on your
architectural approach. Simple widgets with no intelligence for
applications with less future proofing required (say your typical user
ID prompt screen), widgets with MVC capabilities that will intelligently
bind to data, and full form-level MVC where the application talks only
to a form and the form can be adjusted as the application data changes.

EGL has perhaps the most complete MVC implementation of any 4GL out
there. And it's all still part of the demo. :)

Joe
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