I'm learning and creating a master-detail project using "Windows Template Studio".

Now I want to change the details, and want the changes shown in the master.
Like below
[![enter image description here](https://i.stack.imgur.com/YO6YI.png)](https://i.stack.imgur.com/YO6YI.png)

But I don't known how?
I have upload the sample code to GitHub.
<https://github.com/hupo376787/App2>

Can anyone change the sample code, thanks a lot!