I've been trying to implement LongListSelector and I've been unable to find any good WP8 tutorial.
The best thing I've found is WP7tutorial. I've followed the tutorial till step 21, but my result isn't the same. I've ended up creating a list which only show categories in white text. which means it doesn't even uses the header template.
update: MSDN has a tutorial, but I think its way to advance for me since I'm also new to C#.
update2: I've figured out about why header template was not being displayed because "isGroupingEnabled" is disabled by default. .
Now groups are properly shown but not the items in groups