问题
If the statements in the call graph after "await" point does not access any object whose type is not derived from System.Windows.UIElement class, can we say that the developer safely use ConfigureAwait(false) for Windows Mobile apps?
What kind of statements must have been executed on UI thread besides updating GUI elements?
回答1:
Any code that directly (or indirectly) manipulates UI elements should be run in the UI context. Usually, this just includes direct manipulation and updating ViewModels.
In all other situations, you should use ConfigureAwait(false).
来源：https://stackoverflow.com/questions/18670617/decide-when-to-use-configureawaitfalse