Hi Marc Roussel,
We are aware of this issue and it will be fixed as soon as possible. The issue is related to the synchronization or CurrentItem and SelectedItem - when IsSynchronizedWithCurrentItem is true and the grid is sorted, the grid will attempt to synchronize its selected item with its current item and as a result a selection change is performed.
To workaround this problem you can turn off the synchronization of CurrentItem and SelectedItem by setting IsSynchronizationWithCurrenITem to false. The other possible workaround is to clear the current item when RadGridView is first initialized:
// subscribe for DataLoaded event
sender, EventArgs e)
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