I want to be able to add properties to a class at runtime and access these properties later through a BindingExtension such as:

class PropertiesHolder {
    properties = [];
}


class PropertiesAdder {
    propertiesHolder.properties.add(PropertyA);
    propertiesHolder.properties.add(PropertyB);
}

Content="{Binding PropertyB}"

Then the XAML would retrieve the value stored in the object “PropertyB”

The issue I face is that there is no way to distinguish between these different properties. I can dynamically throw a bunch into an ObservableCollection or something, but if I create two or more, I don’t know how to differentiate between them with the data binding since the Binding takes a path pointing to the property. I couldn’t say, store a UID in the property, since the Binding won’t care about information inside the object until it first gets the object, obviously.