As far as I know, you cannot externalize an entire SectionGroup (i.e. MyCustomGroup
) using the configSource
attribute, but you have to handle this on the Section level (i.e. MyCustomSection
)
<configuration>
<configSections>
<sectionGroup name="MyCustomGroup">
<section name="MyCustomSection"/>
</sectionGroup>
</configSections>
<MyCustomGroup>
<MyCustomSection configSource="externalfile.config" />
</MyCustomGroup>
</configuration>
The external file externalfile.config
would then contain your actual config settings, starting directly with your own custom section tag (no leading <?xml....?>
or <configuration>
or anything needed):
<MyCustomSection>
... your settings here......
</MyCustomSection>
Marc