[WP Silverlight81]奇怪的ApplicationSettings错误 [英] [WP Silverlight81] Strange ApplicationSettings bug

问题描述

考虑以下代码：

   private void Application_Deactivated(object sender, DeactivatedEventArgs e)
        {
            Debug.WriteLine(IsolatedStorageSettings.ApplicationSettings.Contains("MyKey") ? "TRUE" : "FALSE");
            IsolatedStorageSettings.ApplicationSettings["MyKey"] = DateTimeOffset.Now;
        }   

当你打开，然后手动关闭应用程序（按住按钮以执行此操作）很多次，你会看到输出"FALSE"， "TRUE"，"TRUE"等，这是预期的

When you open, then manually close the app (hold back button to do it) many times, you'll see the output "FALSE", "TRUE", "TRUE", etc, which is expected

现在让我们再添加一行代码：

Now let's add one more line of code:

     private void Application_Deactivated(object sender, DeactivatedEventArgs e)
        {
            Debug.WriteLine(IsolatedStorageSettings.ApplicationSettings.Contains("MyKey") ? "TRUE" : "FALSE");
            IsolatedStorageSettings.ApplicationSettings["MyKey"] = DateTimeOffset.Now;
            IsolatedStorageSettings.ApplicationSettings["MyAnotherKey"] = DateTimeOffset.Now;                        

}

在这种情况下，输出将（完全出乎意料）为：FALSE，FALSE，FALSE ..

In this case however the output will (totally unexpectedly) be: FALSE, FALSE, FALSE..

任何想法，这里发生了什么？

Any idea, what is going on here??

推荐答案

Alex Sychev，

Hi Alex Sychev,

我已经在我身边测试了你的代码，我可以得到正确的结果，所以我无法在我的问题中重现你的问题侧。您能否尝试创建一个新的空项目并添加代码以查看它是否有效？尝试在代码中添加断点以查看
发生了什么。此外，我想知道你是否在模拟器和设备中遇到相同的结果。

I have tested your code in my side, I can get the correct result, so I can not reproduce your issue in my side. Could you please try to create a new empty project and add the code to see if it works? Try to add the breakpoint inside the code to see what happens. Besides, I wonder if you meet the same result in the emulator and device.

最好的问候，

Amy Peng

Best Regards,
Amy Peng

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