Observes <TParameter1, TParameter2, TResult>(
[NotNull] TParameter1 parameter1,
[NotNull] TParameter2 parameter2,
[NotNull] Expression <Func <TParameter1, TParameter2, TResult> > propertyExpression,
bool isAutoActivate,
[NotNull] Action <TResult?> action)
where TParameter1 : INotifyPropertyChanged
where TParameter2 : INotifyPropertyChanged
where TResult : struct
{
var observer = new PropertyValueObserver <TParameter1, TParameter2, TResult>(
parameter1,
parameter2,
propertyExpression,
action, PropertyObserverFlag.None);
if (isAutoActivate)
{
observer.Activate(true);
}
return(observer);
}