Why do I sometimes have to manually edit app.config to get my project to compile?

[Stuart Hemming]

I'm working on a project that's in the early stages of development and, consequently, the object model is in a state of flux.

Sometimes when I make a change to a class, usually when I've deleted a property and subsequently tried to recompile the project, the compile will fail with an error about something being in the app.config file that can't be found in the model.

I'm making my changes directly in the class' source and then recompiling the code. Is there something else I should be doing?

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Stuart

[Damyan Bogoev]

Hi Stuart Hemming,

I recommend you to use the Schema Merge wizard which helps to merge the schema changes with the class model. The problem is that when you manually remove fields from the classes, their mapping configuration is still present in the App.config and errors are thrown. If you use the wizard to update the model the mapping will be automatically updated and no manual operations should be required.
You could find useful the following help article - “Schema Merge”.
Hope that helps.

All the best,
Damyan Bogoev
the Telerik team

[Stuart Hemming]

OK. Perhaps should have said that, generally, I'm making changes in the object model then forward engineering the model and the docs seem to suggest that scheme merge is a reverse engineering tool.

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Stuart

[Ady]

Hi Stuart Hemming,

 The Forward Mapping wizard does not currently track the changes in the code and update the app.config automatically. Hence, if you remove a field which already has a mapping in the config file, you get an error.

You can use the 'Check Settings' dialog to fix such problems.The problems are reported and you can use the 'Fix' button to update the config file.

Best wishes,
Ady
the Telerik team

[Stuart Hemming]

Ady,

Thanks for that; I'd not discovered the 'Check Settings' option.

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Stuart