public class RegCtrl
{
private static RegistryKey rootkey;
/// /// 构造根键为RootKey的注册表操作类，缺省打开Current_User主键 /// 
        public RegCtrl(string RootKey)
{
switch (RootKey.ToUpper())
{
case "CLASSES_ROOT":
rootkey = Registry.ClassesRoot;
break;
case "CURRENT_USER":
rootkey = Registry.CurrentUser;
break;
case "LOCAL_MACHINE":
rootkey = Registry.LocalMachine;
break;
case "USERS":
rootkey = Registry.Users;
break;
case "CURRENT_CONFIG":
rootkey = Registry.CurrentConfig;
break;
case "DYN_DATA":
rootkey = Registry.DynData;
break;
case "PERFORMANCE_DATA":
rootkey = Registry.PerformanceData;
break;
default:
rootkey = Registry.CurrentUser;
break;
}
}
/// /// 读取路径为keypath，键名为keyname的注册表键值，缺省返回def /// /// /// /// /// 
        public string GetRegVal(string keypath, string keyname, string def)
{
try
{
RegistryKey key = rootkey.OpenSubKey(keypath);
return key.GetValue(keyname, (object)def).ToString();
}
catch
{
return def;
}
}
/// /// 设置路径为keypath，键名为keyname的注册表键值为keyval /// /// /// /// 
        public bool SetRegVal(string keypath, string keyname, string keyval)
{
try
{
RegistryKey key = rootkey.OpenSubKey(keypath, true);
key.SetValue(keyname, (object)keyval);
return true;
}
catch
{
return false;
}
}
/// /// 创建路径为keypath的键 /// /// /// 
        public RegistryKey CreateRegKey(string keypath)
{
try
{
return rootkey.CreateSubKey(keypath);
}
catch
{
return null;
}
}
/// /// 删除路径为keypath的子项 /// /// /// 
        public bool DelRegSubKey(string keypath)
{
try {
rootkey.DeleteSubKey(keypath); return true;
}
catch
{
return false;
}
}
/// /// 删除路径为keypath的子项及其附属子项 /// /// /// 
        public bool DelRegSubKeyTree(string keypath)
{
try
{
rootkey.DeleteSubKeyTree(keypath);
return true;
}
catch
{
return false;
}
}
/// /// 删除路径为keypath下键名为keyname的键值 /// /// /// ///
        public bool DelRegKeyVal(string keypath, string keyname)
{
try
{
RegistryKey key = rootkey.OpenSubKey(keypath, true);
key.DeleteValue(keyname);
return true;
}
catch
{
return false;
}
}
}