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OnCollectionViewPropertyChanged detached ItemsSource, yielded, then reattached it, so a frame rendered with no items whenever the grouping changed: the table flickered empty before showing the new groups. Detach and reattach in one go. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Description
When the grouping changes,
OnCollectionViewPropertyChangeddetachesItemsSource, awaitsTask.Yield(), then reattaches it. The yield lets a frame render with no items, so on every grouping change (Group, Ungroup, adding a nested level) the table flickers empty for a moment before the new groups appear.This detaches and reattaches in one go, which rebuilds the groups the same way without the empty frame in between.
Related Issue
None opened.
Type of Change
Checklist
mainbranchSelectingARowWithWideDetails_KeepsTheSelectionVisualsOnTheCells, which fails the same way onmainon my machine)🤖 Generated with Claude Code