However, the ReferenceExtension class that defines the x:Reference markup extension also defines a ContentProperty attribute for Name, which means that it isn’t explicitly required. The x:Reference binding extension defines a property named Name to set to the name of the referenced element, in this case slider. The Slider contains an x:Name attribute that is referenced by the two Label views using the x:Reference markup extension. The following example contains a Slider and two Label views, one of which is rotated by the Slider value and another which displays the Slider value: In this case, you set the BindingContext of the target object using the x:Reference markup extension. You can define data bindings to link properties of two views on the same page. Sometimes it’s set from the code-behind file, sometimes using a StaticResource or x:Static markup extension, and sometimes as the content of BindingContext property-element tags. However, when you define data bindings in XAML, there are multiple ways to set the BindingContext of the target object. In XAML, you must also perform the same two steps that are required in code, except that the Binding markup extension takes the place of the SetBinding call and the Binding class. A property of Label, such as Text, is associated with the bindable property TextProperty.
The target property must be a bindable property, which means that the target object must derive from BindableObject. The SetBinding method (often used in conjunction with the Binding class) must be called on the target object to bind a property of that object to a property of the source object.The BindingContext property of the target object must be set to the source object,.Data bindingsĭata bindings connect properties of two objects, called the source and the target.
This is a very valuable tool, and while data bindings can be defined entirely in code, XAML provides shortcuts and convenience. NET Multi-platform App UI (.NET MAUI) data bindings allow properties of two objects to be linked so that a change in one causes a change in the other.
0 kommentar(er)
