C#操作注冊表

ShangShujie 2008-02-25

展開全文

以下從‘讀’‘寫’‘刪除’‘判斷’四個事例實現(xiàn)對注冊表的簡單操作
1.讀取指定名稱的注冊表的值
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;
}
以上是讀取的注冊表中HKEY_LOCAL_MACHINE\SOFTWARE目錄下的XXX目錄中名稱為name的注冊表值；

2.向注冊表中寫數(shù)據(jù)
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);
}
以上是在注冊表中HKEY_LOCAL_MACHINE\SOFTWARE目錄下新建XXX目錄并在此目錄下創(chuàng)建名稱為name值為tovalue的注冊表項；

3.刪除注冊表中指定的注冊表項
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);
   }
}
以上是在注冊表中HKEY_LOCAL_MACHINE\SOFTWARE目錄下XXX目錄中刪除名稱為name注冊表項；

4.判斷指定注冊表項是否存在
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;
}
以上是在注冊表中HKEY_LOCAL_MACHINE\SOFTWARE目錄下XXX目錄中判斷名稱為name注冊表項是否存在，這一方法在刪除注冊表時已經(jīng)存在，在新建一注冊表項時也應(yīng)有相應(yīng)判斷；