PropertyChangedAlerter Methods | 
The PropertyChangedAlerter type exposes the following members.
| Name | Description | |
|---|---|---|
| AddConstantCallProperty |  Adds a property that will always be called when any property is updated..   | |
| OnAllPropertiesChanged |  Executes when all properties are changed and should be updated.   | |
| OnPropertyChanged | 
            Executes the property changed action. This alerts subscribers to its change in value.
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