Attribute generated by the ObservableAttribute aspect on OnChildPropertyChanged and
OnObservablePropertyChanged methods, indicating which property expressions are observed by these methods.
Namespace: Metalama.Patterns.Observability
Assembly: Metalama.Patterns.Observability.dll
Syntax
[AttributeUsage(AttributeTargets.Method)]
public sealed class ObservedExpressionsAttribute : AttributeRemarks
This attribute forms a contract between base types and derived types in class hierarchies. It informs derived types about which properties the base class monitors for changes, allowing derived classes to efficiently add their own change handling logic.
The OnChildPropertyChanged method is called when a property of a child object (i.e., an object stored
in a field or property of the current type) has changed. The OnObservablePropertyChanged method is called
when a property implementing INotifyPropertyChanged has changed, providing
both the old and new values to allow derived classes to subscribe and unsubscribe from change events.
Constructors
| Name | Description |
|---|---|
| ObservedExpressionsAttribute(params string[]) | Initializes a new instance of the ObservedExpressionsAttribute class. |