How to Bind to Property Which Resides in the App Xaml backend
data-binding, wpf
Solution
I have read here that you can't have a dependency property on the App class.
Indeed you can't, because `Application` doesn't inherit from `DependencyObject`. However, it's not necessary : only the target property of a binding needs to be a dependency property.
If you want to bind to a property of your App class, you can do it like that :
IsEnabled="{Binding Path=User, Source={x:Static Application.Current}}"
Problem
I have a `Property` in my App.xaml.cs called `User` that holds the User details. I have read here that you can't have a dependency property on the App class. I chose to use App.cs because it is global to the entire program and this is used for access control, but any alternatives are welcome. Now my question is how can I bind to this property from my UserControls and Windows. ``` IsEnabled="{Binding Path=User, Converter={StaticResource hasAccessConverter}, ConverterParameter=Mid}" ``` This obviously only works on a property on the `DataContext`. I want to access the property on the App. Can someone show me an example of the binding to the App.xaml.cs property if I implement `INotifyChanged`?