Cancel combobox selection in WPF with MVVM?

The problem is that once WPF updates the value with the property setter, it ignores any further property changed notifications from within that call: it assumes that they will happen as a normal part of the setter and are of no consequence, even if you really have updated the property back to the original value.

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.