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According to the docs, GroupDisplayBinding should control what is displayed in the headers for a grouped ListView and GroupShortNameBinding will show what is in the JumpList.
On UWP, in the latest 2.1.0 and the latest pre-2.2, GroupDisplayBinding does nothing. To have data in my grouped Headers, I have to bind to GroupShortNameBinding or customize my own GroupHeaderTemplate.
In addition, tapping the header will initiate the jumplist view, but ultimately shows nothing. I have to use the hardware backbutton or use WindowKey-Backspace to go back.
Thank you for taking the time to submit the bug. We tried to reproduce the issue you reported but were unable given the description. If you could please attach a reproduction to the bug by starting with a clean Xamarin.Forms project and adding just the code necessary to demonstrate the issue, we would very much appreciate it.
For your convenience, we have created some reproduction best practices viewable here: https://gist.github.com/jassmith/92405c300e54a01dcc6d
Here's the gist of the code i tried and that shows correctly
I am facing this problem. My app displays nothing after I click on a group header. But I can't reproduce it in a clean project.
Created attachment 22330 [details]
Use this solution to reproduce the empty jumplist problem
I worked for 2 days to find out the problem.
1. Open the solution, run the UWP project.
2. You will see a button at the bottom. Click it, and a new data will be added to the list.
3. Click the header of the group title (the "A" letter).
Expected: A page with an "A"
Actually: A blank page
It seems that the problem only happens when you add new data to a list. If the data are all prepared when the list is created, the problem will no occur.
Just to inform you that a reproduction has been made.
Thanks, i able to reproduce
I experience the same behaviour.