c# 关于配置文件

读当前项目配置文件

string heightWeightFlag = ConfigurationSettings.AppSettings["heightWeightFlag"];

读非当前项目配置文件

string path = System.AppDomain.CurrentDomain.BaseDirectory;

if (File.Exists(path + "../ZillionReport.exe.config"))//判断是否存在

{

ExeConfigurationFileMap newmap = new ExeConfigurationFileMap();

newmap.ExeConfigFilename = @"../ZillionReport.exe.config";

Configuration newconfig = ConfigurationManager.OpenMappedExeConfiguration(newmap, ConfigurationUserLevel.None);

AppSettingsSection newappSection = newconfig.AppSettings;

var newappSettings = newappSection.Settings;

if (newappSettings.Count>0)

{

foreach (var key in newappSettings.AllKeys)

{

Console.WriteLine("Key: {0} Value: {1}", key, newappSettings[key]);

}

}

}

Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

//程序设置

config.AppSettings.Settings["HospitalId"].Value =“1”;

//数据库

ConnectionStringSettings mySettings = new ConnectionStringSettings("conStr", “server=192.138.1.252;port=3306;user id=root;password=zillion;database=zilliondb20180620;Character Set=utf8”, "System.Data.SqlClient");

config.ConnectionStrings.ConnectionStrings.Remove("conStr");

config.ConnectionStrings.ConnectionStrings.Add(mySettings);

//保存

config.Save(ConfigurationSaveMode.Modified);

ConfigurationManager.RefreshSection("ConnectionStrings");

ConfigurationManager.RefreshSection("appSettings");

//引外部配置文件

ExeConfigurationFileMap map = new ExeConfigurationFileMap();

map.ExeConfigFilename = @"ZillionReport.exe.config";

Configuration config = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);

Connection.constr = config.ConnectionStrings.ConnectionStrings["conStr"].ConnectionString;

conn = new MySqlConnection(constr);