Moving a custom configuration group to a separate file
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 … Read more