Performance

Async binding

{Binding IsAsync="true"}

• Causes async value to be updated for slow source property get accessor

• Binding can use FallbackValue for the default value of the target DependencyProperty until the value becomes available

ObjectDataProvider.IsAsynchronous

• Allows instantiation in worker thread

PriorityBinding

• Allows multiple binding sources for a single target applied in the order of their priority and availability