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  1  //注册表辅助类 Author:BingBing  2     public static class Regedit  3     {  4         //自定义节点名称  5         public static string NodeName = "you app name";  6         //SOFTWARE节点  7         public static string SoftWare = "SOFTWARE";  8   9         /// <summary> 10         /// 读取指定名称的注册表的值 11         /// </summary> 12         /// <param name="key">注册表值的key</param> 13         /// <returns></returns> 14         public static string GetValue(string key) 15         { 16  17             using (var aimdir = Load(SoftWare)) 18             { 19                 using (var child = aimdir.OpenSubKey(NodeName)) 20                 { 21                     if (child == null) return null; 22                     var registData =http://www.mamicode.com/ child.GetValue(key).ToString(); 23                     return registData; 24                 } 25             } 26         } 27  28         /// <summary> 29         /// 注册表中写数据  30         /// </summary> 31         /// <param name="key">注册表值的key</param> 32         /// <param name="tovalue">值</param> 33         public static void AddValue(string key, string value) 34         { 35             using (var aimdir = Load(SoftWare)) 36             { 37                 using (var child = aimdir.OpenSubKey(NodeName, true)) 38                 { 39                     if (child == null) return; 40                     if (ExistsValue(key, NodeName)) return; 41                     child.SetValue(key, value); 42                 } 43             } 44         } 45  46         /// <summary> 47         /// 删除注册表中指定的注册表项 48         /// </summary> 49         /// <param name="key">注册表值中的键</param> 50         public static void DeleteValue(string key) 51         { 52             using (var aimdir = Load(SoftWare)) 53             { 54                 if (!ExistsValue(key, NodeName)) return; 55                 using (var child = aimdir.OpenSubKey(NodeName, true)) 56                 { 57                     if (child != null) 58                     { 59                         child.DeleteValue(key); 60  61                     } 62                 } 63             } 64         } 65  66         /// <summary> 67         /// Load 68         /// </summary> 69         /// <returns></returns> 70         public static RegistryKey Load(string rootName) 71         { 72             var software = Registry.CurrentUser; 73             return software.OpenSubKey(rootName, RegistryKeyPermissionCheck.ReadWriteSubTree, System.Security.AccessControl.RegistryRights.FullControl); 74  75         } 76  77         /// <summary> 78         /// 判断指定注册表项是否存在 79         /// </summary> 80         /// <param name="nodeName">注册表左侧节点名称</param> 81         /// <returns></returns> 82         public static bool Exists(string nodeName) 83         { 84             var exit = false; 85             using (var aimdir = Load(SoftWare)) 86             { 87                 var subkeyNames = aimdir.GetSubKeyNames(); 88                 if (subkeyNames.Any(keyName => keyName == nodeName)) 89                 { 90                     exit = true; 91                 } 92  93             } 94  95             return exit; 96         } 97  98         /// <summary> 99         /// 判断指定注册表项是否存在100         /// </summary>101         /// <param name="nodeName">注册表左侧节点</param>102         /// <param name="rootName">父节点名称</param>103         /// <returns></returns>104         public static bool ExistsValue(string key, string rootName)105         {106             var exit = false;107             using (var aimdir = Load(SoftWare))108             {109                 using (var child = aimdir.OpenSubKey(NodeName, true))110                 {111                     if (child == null) return exit;112                     var subkeyNames = child.GetValueNames();113                     if (subkeyNames.Any(keyName => keyName == key))114                     {115                         exit = true;116                     }117                 }118             }119 120             return exit;121         }122 123         /// <summary>124         /// 创建125         /// </summary>126         /// <param name="name">左侧节点名称</param>127         public static void Create(string nodeName)128         {129             using (var software = Load(SoftWare))130             {131                 if (!Exists(nodeName))132                 {133                     software.CreateSubKey(nodeName);134                 }135             }136         }137 138         /// <summary>139         /// 跟随windows一起启动140         /// </summary>141         /// <param name="path">要启动程序的绝对路径</param>142         public static void AutoRun(string path)143         {144             using (var autorun = Load(SoftWare + @"\Microsoft\Windows\CurrentVersion\Run"))145             {146                 autorun.SetValue(Guid.NewGuid().ToString(), path);147             }148         }149     }