The baseStyle is not set directly on any controls. The baseStyle targets View instances, and sets the HorizontalOptions and VerticalOptions properties.
Var baseStyle = new Style (typeof(View))
#DO BUTTONS INHERIT FONT CODE#
The equivalent C# page, where Style instances are assigned directly to the Style properties of the required controls, is shown in the following code example: public class StyleInheritancePageCS : ContentPage However, while labelStyle and buttonStyle inherit from baseStyle, it's not possible for baseStyle to inherit from labelStyle or buttonStyle, due to their respective locations in the view hierarchy. In this example, labelStyle and buttonStyle are control level resources, while baseStyle is a page level resource. This inheritance chain is demonstrated in the following code example: A control level resource can inherit from application level resources, page level resources, and other control level resources.A page level resource can inherit from application level resources, and other page level resources.An application level resource can only inherit from other application level resources.Respecting the inheritance chainĪ style can only inherit from styles at the same level, or above, in the view hierarchy. This results in the appearance shown in the following screenshots:Īn implicit style can be derived from an explicit style, but an explicit style can't be derived from an implicit style. The labelStyle and buttonStyle are then applied to the Label instances and Button instance, by setting their Style properties. Instead, labelStyle and buttonStyle inherit from it, setting additional bindable property values. The following code demonstrates explicit style inheritance in a XAML page: For example, if a base style targets View instances, styles that are based on the base style can target View instances or types that derive from the View class, such as Label and Button instances. In addition, styles that inherit from a base style must target the same type, or a type that derives from the type targeted by the base style. Styles that inherit from a base style can include Setter instances for new properties, or use them to override styles from the base style. In C#, this is achieved by setting the BasedOn property to a Style instance. In XAML, this is achieved by setting the BasedOn property to a StaticResource markup extension that references a previously created Style. Style inheritance is performed by setting the Style.BasedOn property to an existing Style. Styles can inherit from other styles to reduce duplication and enable reuse.
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