WPF Dispatcher BeginInvoke订购保证

Question

如果我打电话

Dispatcher.BeginInvoke(operation, DispatcherPriority.Loaded) 

来自超过20个线程的1,000,000次，是由UI线程按照BeginInvoke调用的顺序保证的1,000,000次操作？

Answer 1

msdn说If multiple BeginInvoke calls are made at the same DispatcherPriority, they will be executed in the order the calls were made

但是如果您从多个线程访问Dispatcher，那么Any instance members are not guaranteed to be thread safe.