使用C#在注册表中保存信息的例子

写出来，方便记忆，以后要用，可以直接改改就能用。

using system;

namespace backend
{
    public class registrystorage
    {
        public static pagevisibility openafterstart()
        {
            microsoft.win32.registrykey registrykey;
            pagevisibility visibility = pagevisibility.visible;

            // hkcu\software\regeditstorage
            registrykey = microsoft.win32.registry.currentuser.opensubkey(@"software\registrystorage");
            if (registrykey != null)
            {
                visibility = (string)registrykey.getvalue("pagevisibility") == pagevisibility.hide.tostring() ?
                    pagevisibility.hide : pagevisibility.visible;
                registrykey.close();
            }

            return visibility;
        }

        public static void savebeforeexit(pagevisibility visibility)
        {
            microsoft.win32.registrykey registrykey;

            // hkcu\software\regeditstorage
            registrykey = microsoft.win32.registry.currentuser.createsubkey(@"software\registrystorage");
            registrykey.setvalue("pagevisibility", visibility.tostring());
            registrykey.close();
        }
    }

    public enum pagevisibility
    {
        visible,
        hide
    }
}

代码很容易理解，下面添加一点代码来测试一下。

using system;
using system.diagnostics;

namespace backend.test
{
    class program
    {
        static void main(string[] args)
        {
            // 存值
            registrystorage.savebeforeexit(pagevisibility.hide);
            // 取值
            pagevisibility visibility = registrystorage.openafterstart();
            // 验证
            debug.assert(visibility == pagevisibility.hide);

  
            // 存值
            registrystorage.savebeforeexit(pagevisibility.visible);
            // 取值
            visibility = registrystorage.openafterstart();
            // 验证
            debug.assert(visibility == pagevisibility.visible);

            console.writeline("press any key to exit.");
            console.readkey();
        }
    }
}

最后，上一张修改后的注册表截图：