窗口设计获取指定配置文件

            ExeConfigurationFileMap exc = new ExeConfigurationFileMap();
            string BasePath = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase;//获取当前程序所在的目录
            exc.ExeConfigFilename = BasePath + "YJKJ.Scan.JY.exe.config";//确认配置文件位置

            XmlOperate xmlScanConfig = new XmlOperate(BasePath + "YJKJ.Scan.JY.exe.config");

            string dz= BasePath + "YJKJ.Scan.JY.exe.config";
            Configuration AppConfig = ConfigurationManager.OpenMappedExeConfiguration(exc, ConfigurationUserLevel.None);
            //取值

            string Temp = AppConfig.AppSettings.Settings["Temp"].Value;
            this.Temp.Text = Temp;

获取本地配置文件内容

//string a = ConfigurationManager.AppSettings["Temp"];

编辑提交地址

     private void AddUpdateAppSettings(string key, string value)
        {
            ExeConfigurationFileMap exc = new ExeConfigurationFileMap();
            string BasePath = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase;
            exc.ExeConfigFilename = BasePath + "YJKJ.Scan.JY.exe.config";
            //Configuration AppConfig = ConfigurationManager.OpenMappedExeConfiguration(exc, ConfigurationUserLevel.None);
            try
            {
                var configFile = ConfigurationManager.OpenMappedExeConfiguration(exc,ConfigurationUserLevel.None);
                var settings = configFile.AppSettings.Settings;
                if (settings[key] == null)
                {
                    settings.Add(key, value);
                }
                else
                {
                    settings[key].Value = value;
                }
                configFile.Save(ConfigurationSaveMode.Modified);
                ConfigurationManager.RefreshSection(configFile.AppSettings.SectionInformation.Name);
            }
            catch (ConfigurationErrorsException)
            {
                Console.WriteLine("Error writing app settings");
            }
        }