Steema Central

If the DataSource is located in a TDataModule, when the application is run, all the column data (header text, width) is cleared and reinitiated from the database.

I also tried putting DataSource is on the same form as the Grid but the data components that are referenced in a TDataModule, but this causes it to crash.

I assumed is because the TDataModule has not been created when the grid is so it defaults to nil and clears out the columns so I changed the project so the TDataModule is created before the main form. This seems to work but I wonder what other ramifications it may have as I have never done this before.

Is there any way to persist the column data thru or after a change/assignment of the dataSource short of me hand coding them after the application starts?

Thanks for the feedback.

You seem to have found the solution for the particular case you have in-hand. I've looked at a few of the examples included with TeeGrid, such as the Datasource example here:
https://github.com/Steema/TeeGrid-VCL-F ... DataSource

The behaviour is different, designtime changes to the header are saved for the runtime display but perhaps I need to run a different configuration to see the issue. Are you able to reproduce the problem on any of the public examples or perhaps you have an example or steps-to reproduce that you can send us?

With thanks.
Regards,
Marc Meumann