[InvalidOperationException: ExecuteReader 要求已打开且可用的 Connection。连接的当前状态为已关闭。]
System.Data.OleDb.OleDbConnection.CheckStateOpen(String method) +38
System.Data.OleDb.OleDbCommand.ValidateConnection(String method) +19
System.Data.OleDb.OleDbCommand.ValidateConnectionAndTransaction(String method) +18
System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) +51
System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior) +106
ANDY.Common.DBClass.Re_dr(String sql) in E:\web\2013新网站\朗晟最新客户网站\findlab.com.cn\ANDY.Common\DBClass.cs:126
proinfo.LoadInfo() +234
proinfo.Page_Load(Object sender, EventArgs e) +72
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +85
System.Web.UI.Control.OnLoad(EventArgs e) +79
System.Web.UI.Control.LoadRecursive() +130
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2849
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