Multiple Configuration Files - error in forward mapping dialog

[David Hollins]

I am trying to separate the configuration files specific to my particular libraries but the Forward Mapping Wizard doesn't like them to be separated.  It is giving errors even though I followed the example here.

It is complaining about missing connection section and mappings section.  Do ALL configuration files have to have those sections in them to work properly?

Any help would be appreciated!

[Damyan Bogoev]

Hi David Hollins,

You could look at this code library - “Using Multiple Data-Models”, which demonstrates how to distribute the configuration information over several config files.
Every configuration file should contain information for the class mappings but it is not necessary to contain information for the connection settings. A mapping section describes how your persistent classes are mapped to tables and columns in the database. If no connection strings are specified OpenAccess will try to follow the references defined under the <references> node and obtain this information from the referenced config files.

Hope you will find useful the provided example. 

Regards,
Damyan Bogoev
the Telerik team

[David Hollins]

The connection information isn't the problem that it is hanging up on.  It is the fact that the mapping for some of the classes is in the other configuration file and NOT in this configuration file.

So essentially, how can an object in one library having its own configuration file reference an object in another library which is mapped an an entirely different configuration file?

[Damyan Bogoev]

Hello David Hollins,

I have prepared a sample application which demonstrates the approach you want to use. There are two class libraries, each with one class:

- ClassLibrary1.Account;

- ClassLibrary2.Region;

The mapping for the Region class is placed within the ClassLibrary1.App.config. You should only reference the assemblies which contain the mapping information within the executing application’s configuration file:

<references>
      <reference assemblyname="ClassLibrary1" configrequired="True" />
      <reference assemblyname="ClassLibrary2" configrequired="True" />
</references>

Hope you will find useful the provided information and example.

Greetings,
Damyan Bogoev
the Telerik team