是<appSettings>吧?
不是<addSettings>吧
如果你非要<addSettings>的话,也是可以的,把msdn好好看看先

解决方案 »

  1.   


     </system.web>
     
    <appSettings>
    <add key="ORACLEConnectionString" value="Provider='OraOLEDB.Oracle.1';User ID=tzh;password=tzh;Data Source='db01.centralsoft'" />
    <add key="TmpDirForDownLoad" value="c:\tmp" />
    </appSettings>用时
    using System.Configuration;
    ConnectionString = ConfigurationSettings.AppSettings["ORACLEConnectionString"];
      

  2.   

    同一楼上
    你要 用addsettings得 话
    要用到XmlDocument
      

  3.   

    <appSettings>
    <add key="conect" value="fsd"/>
    </appSettings>
      

  4.   

    <?xml version="1.0" encoding="GB2312" ?>
    <configuration>  
    <appSettings>
    <add key="news" value="server=DNS;database=news;uid=;pwd=" /> </appSettings>
    </configuration>