[InvalidOperationException: 无效操作。连接被关闭。]
   System.Data.ProviderBase.DbConnectionClosed.CreateReferenceCollection() +84
   System.Data.ProviderBase.DbConnectionInternal.AddWeakReference(Object value, Int32 tag) +46
   System.Data.OleDb.OleDbConnection.AddWeakReference(Object value, Int32 tag) +13
   System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) +379
   System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior) +110
   System.Data.OleDb.OleDbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) +4
   System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +140
   System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +316
   System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +86
   ACHelper.GetFillData(String cmdTxt, String tableName) +120
   ACHelperSQL.SelectContentId(Int32 contentId) +45
   adminManageDARule.SelectContentId(Int32 contentId) +42
   show.RepeaterYyDTBind(Int32 cid) +42
   show.Page_Load(Object sender, EventArgs e) +222
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +92
   System.Web.UI.Control.LoadRecursive() +54
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772