I\'m trying to use ConfigurationManager.AppSettings.GetValues() to retrieve multiple configuration values for a single key, but I\'m always receiving an array o
What you want to do is not possible. You either have to name each key differently, or do something like value="A,B,C" and separate out the different values in code string values = value.split(',').
It will always pick up the value of the key which was last defined (in your example C).