How to use a App.config file in WPF applications?

Question

I created an App.config file in my WPF application:

Answer 1

In my case, I followed the steps below.

App.config

Added System.Configuartion to my project.

Added using System.Configuration statement in file at top.

Then used this statement:

string queuePath = ConfigurationManager.AppSettings["POCPublishSubscribeQueueName"].ToString();