dependency-observable

nav-title	title	description
Class ui/core/dependency-observable	Class ui/core/dependency-observable	Class ui/core/dependency-observable

Module: "ui/core/dependency-observable"

// To import the "ui/core/dependency-observable" module:
var uicoredependency_observable = require("ui/core/dependency-observable");

Class	Description
Property	Represents a special Property which supports changed callback, metadata and value validation.
PropertyMetadata	Represents an Object that describes a Property instance.
PropertyEntry	Represents an Object that is used to back a value for a Property in a DependencyObservable Object instance.
DependencyObservable	Represents an extended Observable Object that uses Property instances for value backing mechanism.
This routine allows for various value modifiers per Property, which is used for inheritance, data-binding and styling purposes.

Object	Description
PropertyChangeData	The data for the event raised when a value of a Property changes for a DependencyObservable instance.
PropertyChangedCallback	Defines the signature of the function that handles the propertyChanged event.
PropertyValidateValueCallback	Defines the signature of the function that handles the validateValue event.

Namespace	Description
PropertyMetadataOptions	Lists the possible values for the PropertyMetadata.options property. Each actual numeric value is a power of two allowing for bitwise operations.
ValueSource	Lists the possible values for the PropertyEntry.valueSource property.