Related #14906
ComboBox and UpDown do not share the TextBoxBase non-client paint path (ComboBox overpaints during WM_PAINT), so PR #14919 leaves them on the old border. Extend the same per-state stroke look to them so an editable row does not show a different border on a TextBox than on an adjacent ComboBox or NumericUpDown.
Related #14906
ComboBox and UpDown do not share the TextBoxBase non-client paint path (ComboBox overpaints during WM_PAINT), so PR #14919 leaves them on the old border. Extend the same per-state stroke look to them so an editable row does not show a different border on a TextBox than on an adjacent ComboBox or NumericUpDown.