How do you load the config file of the currently executing assembly via the ConfigurationManager without directly referencing/loading the config file manually?

Question

 How do you load the config file of the currently executing assembly via the ConfigurationManager without directly referencing/loading the config file manually?

I have an executable A which has a config file and some assembly B which has its own config file. Let's say class A in executable A executes a method of class B in assembly B. Calling ConfigurationManager.AppSettings["sometext"] attempts to retrieve the value from executable A's configuration file. How can I retrieve a value from assembly B's configuration file without manually loading assemblyB.dll.config (for example). The main entry assembly here is executable A.

Thanks!

Answer 1

I assume you're talking about doing this without hardcoding the assembly name into the file.  You can use a combination of Assembly.GetExecutingAssembly().Location and OpenExeConfiguration to fetch the Configuration object for your specific running assembly.  

string path = Assembly.GetExecutingAssembly().Location;

Configuration config = ConfigurationManager.OpenExeConfiguration(path);

string value = config.AppSettings.Settings["value"].Value;

 

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David Morton - http://blog.davemorton.net/