title: EASY way to refresh ListBox in WPF?
body: <p>I have created a simple form that inserts/updates/deletes a values for Northwind Customers.
  Everything works fine, except in order to see a results, I have to close it, and reopen again.
  My form looks like this :</p>
  
  <p><img src="https://i.stack.imgur.com/Qp2FZ.jpg" alt="enter image description here"></p>
  
  <p>I've searched tens of articles on how to refresh <code>ListBox</code>, but all of those use interface implementing, or using DataSets, and stuff I have never heard of and cannot implement. It's a very simple project, using simple procedures. Is there an easy way to refresh the list of customers without adding many lines of code?</p>