AppliedChangeObservable class¶

Attributes: [DebuggerDisplay("AppliedChangeObservable: {_observers.Length} observer(s)")]

Summary¶

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The changes a two-way binding actually wrote, handed to whoever subscribes to the binding.

classDiagram
class AppliedChangeObservable
class IObservable~BindingChange~ {
    <>
}
IObservable~BindingChange~ <|.. AppliedChangeObservable

Implements: IObservable

Remarks¶

A two-way binding applies each change once and reports the same change to its subscribers, so both have to come from one place. Projecting the two observed sides a second time instead would attach another set of property handlers for every subscriber, and would report values the binding weighed and refused to write - the echo of a write is exactly what a subscriber is trying to tell apart from an edit.

Observers are kept in an array that is replaced rather than mutated, so a change already being delivered walks the set it started with and a subscription taken during delivery cannot disturb it.

Constructors¶

Methods¶