WPF - ObservableCollection PropertyChanged event?

You would need to use your own class that implements the INotifyPropertyChanged interface. You won't be able to use bool, but you can have a single property in your class that is that bool that you want.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.