Trying to understand INotifyPropertyChanged

Question

Several (newbie) questions:

1) I see a lot of

public Person SelectedPerson { get; set; } 

I am assuming this does NOT fire a property

Answer 1

1. Correct - that does not fire

2. Yes, to have CanDeletePerson reevaluated, you can raise PropertyChanged on CanDeletePerson, like so

       set
       { 
           if ((this.selectedPerson != value))
           { 
               this.selectedPerson = value; 
               base.OnPropertyChanged("SelectedPerson"); 
               base.OnPropertyChanged("CanDeletePerson");
           }
       }
   

3. Like any normal event, but if you're using WPF, you typically don't need to subscribe explicitly