made by these tutorials: TreeViews and Value Converters - https://www.youtube.com/watch?v=6OwyNiLPDNw View Model MVVM Basics - https://www.youtube.com/watch?v=U2ZvZwDZmJU
made by these tutorials: TreeViews and Value Converters - https://www.youtube.com/watch?v=6OwyNiLPDNw View Model MVVM Basics - https://www.youtube.com/watch?v=U2ZvZwDZmJU