配置文件:
<configuration>
<appSettings>
<add key="name" value="我是远程服务器"/>
</appSettings>
</configuration>
旧方法:
后台程序值得读取:
string s=System.Configuration.ConfigurationSettings.AppSettings["name"];
修改配置文件的值:
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/// <summary> /// 更新配置文件信息 /// </summary> /// <param name="name">配置文件字段名称</param> /// <param name="Xvalue">值</param> private void UpdateConfig(string name,string Xvalue) { XmlDocument doc = new XmlDocument(); doc.Load(Application.ExecutablePath + ".config"); XmlNode node = doc.SelectSingleNode(@"//add[@key='"+name+"']"); XmlElement ele = (XmlElement)node; ele.SetAttribute("value", Xvalue); doc.Save(Application.ExecutablePath + ".config"); } |
向配置文件插入值:
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///<summary> ///向.config文件的appKey结写入信息AppValue 保存设置 ///</summary> ///<param name="AppKey">节点名</param> ///<param name="AppValue">值</param> Private void SetValue(String AppKey,String AppValue) { Xmldocument xDoc=new XmlDocument(); xDoc.Load(System.Windows.Forms.Application.ExecutablePath+”.config”); XmlNode xNode; XmlElement xElem1; XmlElement xElem2; xNode=xDoc.SelectSingleNode(“//appSettings”); xElem1=(XmlElement)xNode.SelectSingleNode(“//add[@key=’”+AppKey+”’]”); if(xElem1!=null) xElem1.SetAttribute(“value”,AppValue); else { xElem2=xdoc.CreateElement(“add”); xElem2.SetAttribute(“key”,AppKey); xElem2.setAttribute(“value”,AppValue); xNode.AppendChild(xElem2); } xDoc.Save(System.Windows.Forms.Application.ExecutablePath+”.config”); } |
新方法:
更新配置文件：
Configuration cfa = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
//添加
cfa.AppSettings.Settings.Add("key", "Name")
//修改
cfa.AppSettings.Settings["BrowseDir"].Value = "name";
最后调用
cfa.Save();
当前的配置文件更新成功。
ConfigurationManager.RefreshSection("appSettings");