Hi Hans Peter,
Same goes for them. They use a custom panel available only in the QSF that animates the layout to accommodate a the content. Also there is a second panel that implements IScrollInfo and takes care of the animated scrolling. Their usage is pretty tricky so I can not check them in the production line. I can post you the code but you would still need to integrate them in somewhat controls which I am not sure is possible since the control in the search is custom too.
If you want I can post you the code for the panels but we would not support them, fix bugs or do any other activity related to them.
I am really sorry for the inconvenience. I wish all our controls had such animations out of the box but they have some constraints that does not allow it. For example the animated scroll panel can not use virtualization. While our RadComboBox defently should support VirtualizingStackPanel.
the Telerik team
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