visual studio 2010 数据库连接配置<connectionStrings> 当中怎么填? </connectionStrings>App_Data中有db_ExamOnline.mdf[解决办法]<add key="access_con" value="Provider=Microsoft.Jet.OleDb.4.0;Data Source=|DataDirectory|\\db_ExamOnline.mdb" ></add>[解决办法]
