编辑注册表

1.读取指定名称的注册表的值

private string GetRegistData(string name)

{

string registData;

RegistryKey hkml = Registry.LocalMachine;

RegistryKey software = hkml.OpenSubKey("SOFTWARE",true);

RegistryKey aimdir = software.OpenSubKey("XXX",true);

registData = aimdir.GetValue(name).ToString();

return registData;

}

以上是读取的注册表中HKEY_LOCAL_MACHINE\SOFTWARE目录下的XXX目录中名称为name的注册表值；

2.向注册表中写数据

private void WTRegedit(string name,string tovalue)

{

RegistryKey hklm = Registry.LocalMachine;

RegistryKey software = hklm.OpenSubKey("SOFTWARE",true);

RegistryKey aimdir = software.CreateSubKey("XXX");

aimdir.SetValue(name,tovalue);

}

以上是在注册表中HKEY_LOCAL_MACHINE\SOFTWARE目录下新建XXX目录并在此目录下创建名称为name值为tovalue的注册表项；

3.删除注册表中指定的注册表项

private void DeleteRegist(string name)

{

string[] aimnames;

RegistryKey hkml = Registry.LocalMachine;

RegistryKey software = hkml.OpenSubKey("SOFTWARE",true);

RegistryKey aimdir = software.OpenSubKey("XXX",true);

aimnames = aimdir.GetSubKeyNames();

foreach(string aimKey in aimnames)

{

if(aimKey == name)

aimdir.DeleteSubKeyTree(name);

}

}

以上是在注册表中HKEY_LOCAL_MACHINE\SOFTWARE目录下XXX目录中删除名称为name注册表项；

4.判断指定注册表项是否存在

private bool IsRegeditExit(string name)

{

bool _exit = false;

string[] subkeyNames;

RegistryKey hkml = Registry.LocalMachine;

RegistryKey software = hkml.OpenSubKey("SOFTWARE",true);

RegistryKey aimdir = software.OpenSubKey("XXX",true);

subkeyNames = aimdir.GetSubKeyNames();

foreach(string keyName in subkeyNames)

{

if(keyName == name)

{

_exit = true;

return _exit;

}

}

return _exit;

}

以上是在注册表中HKEY_LOCAL_MACHINE\SOFTWARE目录下XXX目录中判断名称为name注册表项是否存在，这一方法在删除注册表时已经存在，在新建一注册表项时也应有相应判断；