Storing Connection Strings in the App.Config

On the DB Reader and DB Writer components, there is a property called 'Connection String Location'. Change this from 'InputParameter' to 'ConfigFile'.
 
 
Then when you generate a compiled application, or C# source code, the App.Config will contain a <connectionStrings> section.
 
The connection strings can be set in the standard way as specified here:
https://docs.microsoft.com/en-us/dotnet/framework/data/adonet/connection-strings-and-configuration-files
 
Please also see the following demonstration video: