操作oracle的tnsnames.ora文件

 #region 获取tnsnames.ora路径

        private string GetTNSNAMESORAFilePath()
        {
            RegistryKey rgkLm = Registry.LocalMachine;
            RegistryKey rgkOracleHome = rgkLm.OpenSubKey("SOFTWARE").OpenSubKey("ORACLE");
            string home = rgkOracleHome.GetValue("ORACLE_HOME").ToString();
            string filePath = "";
            if (!home.Equals(""))
            {
                filePath = home + @"\network\ADMIN\tnsnames.ora";
            }

            return filePath;
        }

        #endregion

#region　读取tnsnames.ora内容

        private bool ReadData(string filePath)
        {
            bool flag = true;
            try
            {
                FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                StreamReader sr = new StreamReader(fs,Encoding.Default);
                string oraStr=sr.ReadToEnd();
                sr.Close();
                fs.Close();
            }
            catch
            {
                flag = false;
            }

            return flag;
        }
        #endregion

 #region 追加tnsnames.ora文件内容
        private bool WriteFile(string tnsnamesPath)
        {
            bool flag = true;
            string carStr = txtServerName.Text.Trim().ToString()+" =" +
                              "(DESCRIPTION =" +
                                "(ADDRESS_LIST =" +
                                  "(ADDRESS = (PROTOCOL = TCP)(HOST = "+txtHostName.Text.Trim().ToString()+")(PORT = "+txtPortNum.Text.Trim().ToString()+"))" +
                                ")" +
                                "(CONNECT_DATA = (SID = "+txtSid.Text.Trim().ToString()+")(SERVER = DEDICATED))" +
                              ")";
            try
            {
                FileStream fs = new FileStream(tnsnamesPath, FileMode.Append, FileAccess.Write);
                StreamWriter sw = new StreamWriter(fs, Encoding.Default);
                sw.WriteLine(carStr);

                sw.Close();
                fs.Close();
            }
            catch
            {
                flag = false;
            }
            return flag;
        }
        #endregion