Code à WPF/VB.NET tutorial demonstrating good practice for opening a second window respecting MVVM pattern.

Hi, I would need someone to code a WPF project for my own learning purpose. The goal is to make me understand how to open and close a second window without violating the MVVM pattern and with as less code behind as possible. (as far as possible of course) This tutorial should be able to pass (simple) arguments, as a context to the child window and retrieve the changes the user made to the context in the child window. I would like to get back a dialogresult in the main window from the childwindow when the user closes it. This project must load and run in Visual Studio 2015 Express Edition and must be coded in VB.NET (No C#) Since this project should help me to understand how the views do "communicate" with the models the code should contain the necessary comments to help me to understand. For some more information feel free to contact me. Thank you in advance for your best bid, Jeiss