WPF Trigger binding to MVVM property

Question

I have a datatemplate containing an image that I want to be hidden if the the value of a property in a ViewModel is true. Can anyone tell me why the the xaml below does not

Answer 1

isn't that

?

I assume you use INotifyProptyChanged.

EDIT I did some Googling and I think you need to use some sort of template in order to make the trigger work.

eg.: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/ae2dbfb7-5dd6-4352-bfa1-53634289329d

http://www.thejoyofcode.com/Help_Why_cant_I_use_DataTriggers_with_controls_in_WPF.aspx