public static ICommandBuilder ObserveAll(
this ICommandBuilder command,
INotifyPropertyChanged caller)
{
command.AddObserver(new CommandAllObserver(caller));
return(command);
}
public static ICommandBuilder Observe <TObserveable, TReturn>(
this ICommandBuilder command,
TObserveable caller,
Expression <Func <TReturn> > expression) where TObserveable : INotifyPropertyChanged
{
command.AddObserver(new CommandPropertyObserver <TReturn>(caller, expression));
return(command);
}