A Separator control draws a line, horizontal or vertical, between items in controls, such as ListBox, Menu, and ToolBar. Separator controls do not react to any keyboard, mouse, mouse wheel, or tablet input and cannot be enabled or selected.
Dependency properties for this control might be set by the control’s default style. If a property is set by a default style, the property might change from its default value when the control appears in the application. The default style is determined by which desktop theme is used when the application is running. For more information, see Themes.