Borderless ListBox shows a top line when headers are hidden

Status: Fixed
Fixed in: v26.7.2
Source discussion: https://forum.objo.dev/d/569-listbox-header-line-shows-when-hasheaders-is-false
Last updated: 2026-07-12

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Public summary

A ListBox with HasHeaders set to False and HasBorder set to False can still show a thin line above the first row. The control should not leave visible header chrome when headers and the border are both hidden.