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方法如下:
如果是WinForm程序,需要添加引用:
App.config
<?xml version=1.0 encoding=utf-8 ?> <configuration> <appSettings> <add key=testkey value=0></add> </appSettings> </configuration>
NetUtilityLib
using System.Configuration; namespace pcauto { public static class ConfigHelper { ///<summary> ///返回*.exe.config文件中appSettings配置节的value项 ///</summary> ///<param name=strKey></param> ///<returns></returns> public static string GetAppConfig(string strKey) { string file = System.Windows.Forms.Application.ExecutablePath; Configuration config = ConfigurationManager.OpenExeConfiguration(file); foreach (string key in config.AppSettings.Settings.AllKeys) { if (key == strKey) { return config.AppSettings.Settings[strKey].Value.ToString(); } } return null; } ///<summary> ///在*.exe.config文件中appSettings配置节增加一对键值对 ///</summary> ///<param name=newKey></param> ///<param name=newValue></param> public static void UpdateAppConfig(string newKey, string newValue) { string file = System.Windows.Forms.Application.ExecutablePath; Configuration config = ConfigurationManager.OpenExeConfiguration(file); bool exist = false; foreach (string key in config.AppSettings.Settings.AllKeys) { if (key == newKey) { exist = true; } } if (exist) { config.AppSettings.Settings.Remove(newKey); } config.AppSettings.Settings.Add(newKey, newValue); config.Save(ConfigurationSaveMode.Modified); ConfigurationManager.RefreshSection(appSettings); } } }
读示例
ConfigHelper.GetAppConfig(testkey)
写示例
ConfigHelper.UpdateAppConfig(testkey, abc);
总结