Binding.SourceUpdated not firing
c#, data-binding, wpf, wpfdatagrid
Solution
Could it be that 'TargetUpdated' is fired when the source changes and 'SourceUpdated' is fired when the target changes?
(@black-stallion gave me a hint to what might be going on, but I'm hoping people will comment / edit if this is correct or incorrect!)
Problem
I have a binding that works. The GUI updates. ``` <DataGridTextColumn Binding="{Binding Path=Value, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True, Mode=OneWay}"/> ``` The binding source object implements INotifyPropertyChanged and the binding property is a normal clr property. The `Binding.TargetUpdated` event fires, but not the `Binding.SourceUpdated` event. For example, the following works ``` <EventTrigger RoutedEvent="Binding.TargetUpdated"> ... ``` but ``` <EventTrigger RoutedEvent="Binding.SourceUpdated"> ... ``` does not. It makes no difference if I create the binding in code or XAML, use `EventTrigger` in the `Triggers` collection or an `EventSetter`. As far as I can tell the event is just not firing. Does anyone know how to make `Binding.SourceUpdated` fire?