Get enum values from web.config at run time
You can use ConfigurationManager and convert value to enum:
<configuration>
<appSettings>
<add key="YourEnum" value="BlueSky" />
</appSettings>
</configuration>
string configValue = ConfigurationManager.AppSettings["YourEnum"];
YourEnumType value = (YourEnumType)Enum.Parse(typeof(YourEnumType), configValue);