src\Framework\System\Windows\Controls\VirtualizingStackPanel.cs (2)
11969ScrollTraceRecord record = new ScrollTraceRecord(ScrollTraceOp.Mark, null, -1, 0, 0, BuildDetail(args));
12270ScrollTraceRecord record = new ScrollTraceRecord(op, vsp, sti.Depth, sti.ItemIndex, _depth, BuildDetail(args));