Solved

Data Module Inheiritance

Posted on 1997-06-06
1
146 Views
Last Modified: 2010-05-19
I have created a class that inheirits from TDataModule.  This works OK.  However, classes that inheirit from this class automatically include a bunch of junk in the .DFM file, like font settings.  Since these are data mdules, they don't have a font, and thus I get an error when I try to create them.  I can modify the .DFM file and recompile, but I have to do this every time I make a change to the underlying data module code, which is a royal pain.  How can I inheirit from TDataModule and not have to go through this all the time?
0
Comment
Question by:Clayton Neff
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 

Accepted Solution

by:
brittain earned 100 total points
ID: 1336842
I realize this is not the answer you want to hear, but ...
having previously spoken to the Delphi Product Manager on this topic, he said, essentially, at this time neither TForm or TDataModule should be extended as we do with the other VCL components.  The reason being the additional work Delphi does streaming to the .DFM, and other hidden things.  This may improve in the future, but not as of D3.

Of course, with the source all things are possible.  I was strongly advised not to extend these classes.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.

687 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question