> I can read the configuration from app.exe.config file, but I > need to be able > to read the configuration from all three config files. > I remember reading a while ago about the possibility to > link/chain/refer > multiple config files together, but I cannot find that > resource/article > anymore.
The <appSettings> element supports a file attribute. Just bring up MSDN and type "<appSettings" into the index. But since you've got 3 files, it's not quite going to work for you. If you only needed to read 2 files, it works something like this... Your main app.config file could have an <appSettings> section that looks like so: <appSettings file="extra.config"> <add key="key1" value="key1 from app.config"/> <add key="key2" value="key2 from app.config"/> </appSettings> Then extra.config would have *only* an appSettings element as its root element that looks like this: <appSettings> <add key="key2" value="key2 from extra.config"/> <add key="key3" value="key3 from extra.config"/> </appSettings> When app settings are read, the linked file takes precedence. Keys not found there are pulled from the 'root'/main app.config file. So given the above files, here's what ConfigurationSettings.AppSettings[] would return for each key: key1 : key1 from app.config (not found in extra.config) key2 : key2 from extra.config (extra.config overrides app.config) key3 : key3 from extra.config (not found in app.config) Since you're working with 3 config files, some alternatives would be to just use the builtin <appSettings> reader in the .NET class library to read an arbitrary config file[1], or to use a variation that models per-dll configuration files[2]. -Mike Bear Canyon Consulting LLC http://www.bearcanyon.com http://www.pluralsight.com/mike [1] http://www.bearcanyon.com/dotnet/#ConfigFileReader [2] http://www.bearcanyon.com/dotnet/#AssemblySettings =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
