Gets or sets whether to display links within a HyperlinkLabelControl as visited links.
true, if links are displayed as visited links; otherwise, false.
By default, a HyperlinkLabelControl does not mark links as visited links when an end-user clicks them. However, you can manually mark all links as visited links by setting the HyperlinkLabelControl.LinkVisited property to true (for instance, using the HyperlinkLabelControl's LabelControl.HyperlinkClick inherited event). Visited links are painted using a dedicated color (see the HyperlinkLabelControlAppearanceObject.VisitedColor property).