Windows 8 Store应用程序是否具有MessageBox等效项?
问题描述：
Windows 8 Store应用程序是否具有MessageBox之类的内容?
Do Windows 8 Store apps have something like a MessageBox?
我需要类似弹出窗口的内容来显示用户，例如输入错误或发生错误时. API中已经包含某些内容，还是我必须自己制作?
I need something like a popup window to show the user e.g. when a input is wrong or a error happened. Is there something already in the API or do I have to make my own?