MessageBox.Show会导致跨线程异常吗？
我可以在子线程上调用 MessageBox.Show 而不必担心跨线程异常吗？我知道表面上的答案是“尝试一下并找出答案”，我成功地做到了这一点，但我注意到 Windows 7 在引发跨线程异常方面似乎不如 Windows XP 严格。
那么，是否有任何地方记录了可以安全地从子线程执行此操作？
Can I call MessageBox.Show on a child thread without worrying about a cross-thread exception? I know the ostensible answer would be "try it and find out", which I did, successfully, but I've noticed that Windows 7 seems to be less strict about raising cross-thread exceptions than Windows XP.
So, is it documented anywhere that this would be safe to do from a child thread?
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如果您在没有所有者窗口的情况下调用
MessageBox.Show("text")，那么您就可以保存。如果您像
MessageBox.Show(this,"text")那样调用MessageBox.Show并指定所有者窗口，情况就会有所不同。我已经看到，在 Windows XP 中，您可以保存，但在 Windows 7 中，如果所有者窗口运行在与您调用
MessageBox的线程不同的线程中，您将遇到跨线程异常！If you call
MessageBox.Show("text")without an owner window you are save.If you call
MessageBox.ShowlikeMessageBox.Show(this,"text")specifying the owner window things are different.I have seen that in Windows XP you are save but in Windows 7 you will run into a cross-thread exception if the owner window is running in a different thread than the thread from which you call the
MessageBox!不会，它不会导致任何“跨线程”异常。这是因为 MessageBox 不是在 UI 线程上运行的类的成员。
No, it will not cause any "cross-thread" exceptions. That's because the MessageBox is not a member of a class running on the UI thread.
您可以安全地将 MessageBox 放入单独的线程中。但请记住，它只会阻塞创建它的线程。如果您使用的是 WinForm 应用程序，并且另一个线程调用 MessageBox，则仍然可以使用该表单，并且用户可以忽略它。
You are safe to throw a MessageBox in a separate thread. But keep in mind that it will only block the thread that it was created on. If you are using a WinForm app and another thread calls the MessageBox then the form is still able to be played around with and the user can ignore it.