“/”应用程序中的服务器错误。

指定的网络名不再可用。

说明: 执行当前 Web 请求期间，出现未经处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.ComponentModel.Win32Exception: 指定的网络名不再可用。

源错误: 


行 21: 
行 22:  
行 23:     PageColumn = ServiceFactory.ColumnService.SingleOrDefault(22);
行 24:     PageSiteInfo = ServiceFactory.SiteInfoService.SingleOrDefault(1);
行 25:     Whir.Label.LabelHelper.Instance.SerColumnAndSiteInfoToChildControl(this, PageSiteInfo, PageColumn);

源文件: d:\WebSites\Web\index_22.aspx    行: 23

堆栈跟踪: 


[Win32Exception (0x80004005): 指定的网络名不再可用。]

[SqlException (0x80131904): 已成功与服务器建立连接，但是在登录前的握手期间发生错误。 (provider: TCP Provider, error: 0 - 指定的网络名不再可用。)]
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +345
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +156
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +258
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +312
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +202
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +413
   System.Data.SqlClient.SqlConnection.Open() +128
   Whir.Repository.Database.OpenSharedConnection() +192
   Whir.Repository.d__7`1.MoveNext() +337
   System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +202
   Whir.Repository.Database.SingleOrDefault(String sql, Object[] args) +196
   Whir.Repository.Database.SingleOrDefault(Object primaryKey) +366
   Whir.Service.DbBase`1.SingleOrDefault(Object primaryKey) +136
   ASP.index_22_aspx.Page_Load(Object sender, EventArgs e) in d:\WebSites\Web\index_22.aspx:23
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785

版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.7.4108.0
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