Re: Design patterns in the modern IDE (Delphi, MFC, etc.)

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#15

From: L.J. Wischik
Date: Fri, 26 Feb 1999 00:00

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>Secondly - I am particularly interested in the MVC
>(Model/View/Controller)
>architectural pattern and how to implement it in a modern
>environment like Delphi.

I've just implemented a set of model-view-controller things in my
application. It's great fun building these patterns with so-called
non-visual controls (by which they mean that they're visible at
design-time but not at run-time).  So normally you'd write out the code
for each of the parts of the MVC. But in Delphi you plonk down a 'model'
component, plonk down a 'controller' component and connect up its
properties, and plonk down a visual 'view' component and connect up its
properties and that's it. Delphi already provides 'free-notification'
stuff which helps a lot with this sort of peer-object-arrangement but
you'll have to do the change-notification stuff yourself.

And yes, you're correct that the database data-aware controls already
implement this.


-- 
Lucian Wischik, Queens' College, Cambridge CB3 9ET. www.wischik.com/lu

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From: ljw1004@cus.cam.ac.uk (L.J. Wischik)
Subject: Re: Design patterns in the modern IDE (Delphi, MFC, etc.)
Date: 1999/02/26
Message-ID: <7b54bh$kqt$1@pegasus.csx.cam.ac.uk>
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References: <36D493F5.50595534@netspace.net.au> <36d5bfa5.0@nemo.idirect.com>
Organization: University of Cambridge, England
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