----- Original Message -----
From: "Glenn Lawler" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, April 27, 2006 3:36 PM
Subject: [delphi-en] Re: Why not use use db-aware controls.
> >What are compelling reasons not to use db-aware controls?
>
> When you are writing Client-Server systems, using standard controls
> instead of db-aware controls gives you a great deal of flexibility.
> For example, all the db-aware controls I have used will lose their
> data
> as soon as you disconnect from the database. When using standard
> controls. You can connect to the database, run a query to return data,
> populate your controls, and disconnect. This frees up a database
> connection. Most commercial Client-Server databases have a non-trivial
> cost for each simultaneous database connection.
>
> There are many other reasons, this is just one. If you want your
> applications to work exactly the way you want, using someone
> else's component could cause you as much work as writing you own
> code when trying to get around undesired component behavior.
>
> Glenn Lawler
I would heartily agree with all these arguments, especially the last one;
Ever been given a Delphi 3 project to update or modify, which has heavy use
of visual components (data-aware), the components naturally not being
included with the original code, the project being uncompilable without
them, having first to identify where they came from, or to find that they
are not available for D2005, having to substitute them with other
components, find solutions for their altered functionality, rewrite chunks
of code, recheck everything;
All that when the client only wanted a few modifications or a cloned form:
I would hate to imply that my fondness for data-aware components is not of
unmeasurable dimension;
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