最近做的项目需要在注册表中记录一些用户设置，方便在程序下次启动时读取设置，应用上次用户保存的设置，挺简单的。

写出来，方便记忆，以后要用，可以直接改改就能用。

1 using System; 2  3 namespace Backend 4 { 5     public class RegistryStorage 6     { 7         public static PageVisibility OpenAfterStart() 8         { 9             Microsoft.Win32.RegistryKey registryKey;10             PageVisibility visibility = PageVisibility.Visible;11 12             // HKCU\Software\RegeditStorage13             registryKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"Software\RegistryStorage");14             if (registryKey != null)15             {16                 visibility = (string)registryKey.GetValue("PageVisibility") == PageVisibility.Hide.ToString() ?17                     PageVisibility.Hide : PageVisibility.Visible;18                 registryKey.Close();19             }20 21             return visibility;22         }23 24         public static void SaveBeforeExit(PageVisibility visibility)25         {26             Microsoft.Win32.RegistryKey registryKey;27 28             // HKCU\Software\RegeditStorage29             registryKey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey(@"Software\RegistryStorage");30             registryKey.SetValue("PageVisibility", visibility.ToString());31             registryKey.Close();32         }33     }34 35     public enum PageVisibility36     { 37         Visible,38         Hide39     }40 }

代码很容易理解，下面添加一点代码来测试一下。

1 using System; 2 using System.Diagnostics; 3  4 namespace Backend.Test 5 { 6     class Program 7     { 8         static void Main(string[] args) 9         {10             // 存值 11             RegistryStorage.SaveBeforeExit(PageVisibility.Hide);12             // 取值13             PageVisibility visibility = RegistryStorage.OpenAfterStart();14             // 验证15             Debug.Assert(visibility == PageVisibility.Hide);16 17 18             // 存值19             RegistryStorage.SaveBeforeExit(PageVisibility.Visible);20             // 取值21             visibility = RegistryStorage.OpenAfterStart();22             // 验证23             Debug.Assert(visibility == PageVisibility.Visible);24 25             Console.WriteLine("Press any key to exit.");26             Console.ReadKey();27         }28     }29 }

最后，上一张修改后的注册表截图：

 

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