Binding const member in code behind from xaml in WPF
You would be better off using the StaticExtension, like so:
Uid="{x:Static local:YourClass.ID_foo}"Where local is an xmlns alias for the C# namespace of your class. More information can be found here.
The problem with using Binding is you are adding a lot overhead for something that will never change. The binding will attempt to monitor your property. Also, there are known "leaks" with using a Binding with a non-dependency property on an object that don't implement INotifyPropertyChanged.
You need to make a property that returns the constant (defined in a const), ie:
private const string ID_Foo = "foo";public string FooId{ get { return ID_Foo; }}Once this is in a property, it will be usable via binding.