예제 #1
0
        /// <summary>
        /// 更新连接字符串
        /// </summary>
        /// <param name="newName"> 连接字符串名称 </param>
        /// <param name="newConString"> 连接字符串内容 </param>
        /// <param name="newProviderName"> 数据提供程序名称 </param>
        public static void UpdateConnectionStringsConfig(string newName,
                                                         string newConString,
                                                         string newProviderName)
        {
            bool isModified = false;    // 记录该连接串是否已经存在

            // 如果要更改的连接串已经存在
            if (ConfigurationManager.ConnectionStrings[newName] != null)
            {
                isModified = true;
            }
            // 新建一个连接字符串实例
            ConnectionStringSettings mySettings =
                new ConnectionStringSettings(newName, EncrypHandler.Encrypto(newConString), newProviderName);
            // 打开可执行的配置文件*.exe.config
            Configuration config =
                ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

            // 如果连接串已存在,首先删除它
            if (isModified)
            {
                config.ConnectionStrings.ConnectionStrings.Remove(newName);
            }
            // 将新的连接串添加到配置文件中.
            config.ConnectionStrings.ConnectionStrings.Add(mySettings);
            // 保存对配置文件所作的更改
            config.Save(ConfigurationSaveMode.Modified);
            // 强制重新载入配置文件的ConnectionStrings配置节
            ConfigurationManager.RefreshSection("ConnectionStrings");
        }
예제 #2
0
        // <summary>
        /// 依据连接串名字connectionName返回数据连接字符串
        /// </summary>
        /// <param name="connectionName"></param>
        /// <returns></returns>
        public static string GetConnectionStringsConfig(string connectionName)
        {
            string connectionString =
                EncrypHandler.Decrypto(ConfigurationManager.ConnectionStrings[connectionName].ConnectionString.ToString());

            //Console.WriteLine(connectionString);
            return(connectionString);
        }