If there is only one tile in a group and its Visibility property is set to Collapsed, the group header does not disappear.
Please provide an event for when a Tile gets moved and/or when a Tile gets placed into a group or removed from a group. Something simple like OnTileMoved with event args pointing to the tile and new values (like updated group) would be peachy. :)
The fix will be released with Q1 2016 offical version.
The problem should be resolved with lib version 2015.3.1026.
The fix will be available with Q2 2015.
Should be resolved with lib version 2014.3.1402.
Should be resolved with lib version 2014.3.1124
This issue will be resolved with Q3 2014 expected till the end of the month.
I use RadTileList without any tiles grouping. But internally TileListPanel get top padding 30 px. So visually I got "hole" above the list. And i can't set margin -30 because i can't be sure about this padding. ItemsPanelTemplate with padding="0" don't work properly as described at http://stackoverflow.com/questions/23091182/layout-issue-with-telerik-radtilelist-control. I tnink that this top padding should be 0 px if there are no groups at tiles or no "TileGroup" elements are specified.
This problem will be resolved in WPF with Q3 2014 expected till the end of the month.