System.Configuration.Configuration.Save C# (CSharp) Метод

		public void Save ()
		{
			Save (ConfigurationSaveMode.Modified, false);
		}
		

        ///<summary> 
        ///创建ConnectionString(如果存在，先删除再创建) 
        ///</summary> 
        ///<param name="config">Configuration实例</param>
        ///<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 Boolean CreateConnectionStringsConfig(Configuration config, string newName, string newConString, string newProviderName)
        {
            if (config == null && string.IsNullOrEmpty(newName) && string.IsNullOrEmpty(newConString) && string.IsNullOrEmpty(newProviderName))
            {
                return false;
            }

            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 (config.ConnectionStrings.ConnectionStrings[newName] != null)
            { isModified = true; }

            //新建一个连接字符串实例
            ConnectionStringSettings mySettings = new ConnectionStringSettings(newName, newConString, newProviderName);

            // 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);

            return true;
        }