“/”应用程序中的服务器错误。

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行 20: 
行 21:  
行 22:     PageColumn = ServiceFactory.ColumnService.SingleOrDefault(29);
行 23:     PageSiteInfo = ServiceFactory.SiteInfoService.SingleOrDefault(1);
行 24:     Whir.Label.LabelHelper.Instance.SerColumnAndSiteInfoToChildControl(this, PageSiteInfo, PageColumn); 

[Win32Exception (0x80004005): 等待的操作过时。]

[SqlException (0x80131904): Timeout 时间已到。在操作完成之前超时时间已过或服务器未响应。]
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +5341687
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +546
   System.Data.SqlClient.TdsParserStateObject.ReadSniError(TdsParserStateObject stateObj, UInt32 error) +594
   System.Data.SqlClient.TdsParserStateObject.ReadSniSyncOverAsync() +256
   System.Data.SqlClient.TdsParserStateObject.TryReadNetworkPacket() +39
   System.Data.SqlClient.TdsParserStateObject.TryPrepareBuffer() +64
   System.Data.SqlClient.TdsParserStateObject.TryReadByte(Byte& value) +86
   System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +222
   System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() +61
   System.Data.SqlClient.SqlDataReader.get_MetaData() +90
   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +377
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds) +1421
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) +177
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +53
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +137
   System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +41
   System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader() +12
   Whir.Repository.d__7`1.MoveNext() +696
   System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +4093941
   Whir.Repository.Database.SingleOrDefault(String sql, Object[] args) +163
   Whir.Repository.Database.SingleOrDefault(Object primaryKey) +294
   Whir.Service.DbBase`1.SingleOrDefault(Object primaryKey) +108
   ASP.xyxw_list_29_aspx.Page_Load(Object sender, EventArgs e) in f:\usr\localuser\qxw1649870051\xyxw\list_29.aspx:22
   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