Content Model: ToggleButton is a ContentControl. Its content property is Content. For more information on the content model for ToggleButton, see Controls Content Model Overview.
The IsChecked property specifies the state of the ToggleButton. The IsThreeState property specifies whether the ToggleButton has two or three states.
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.