• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 165
  • Last Modified:

Data Module Inheiritance

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
Clayton Neff
Asked:
Clayton Neff
1 Solution
 
brittainCommented:
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
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now