“/”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(25);
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): Connection Timeout Expired.  The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement.  This could be because the pre-login handshake failed or the server was unable to respond back in time.  The duration spent while attempting to connect to this server was - [Pre-Login] initialization=46; handshake=14953; ]
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +414
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +78
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +196
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +146
   System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +16
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +94
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +110
   System.Data.SqlClient.SqlConnection.Open() +96
   Whir.Repository.Database.qrVa370pqMWKOjpCjE(Object ) +32
   Whir.Repository.Database.OpenSharedConnection() +362
   Whir.Repository.d__7`1.MoveNext() +303
   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.scbz_index_25_aspx.Page_Load(Object sender, EventArgs e) in f:\usr\localuser\qxw1649870051\scbz\index_25.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