“/”应用程序中的服务器错误。

在与 SQL Server 建立连接时出现与网络相关的或特定于实例的错误。未找到或无法访问服务器。请验证实例名称是否正确并且 SQL Server 已配置为允许远程连接。 (provider: SQL Network Interfaces, error: 26 - 定位指定的服务器/实例时出错)

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.Data.SqlClient.SqlException: 在与 SQL Server 建立连接时出现与网络相关的或特定于实例的错误。未找到或无法访问服务器。请验证实例名称是否正确并且 SQL Server 已配置为允许远程连接。 (provider: SQL Network Interfaces, error: 26 - 定位指定的服务器/实例时出错)

源错误:


行 38:     protected void Page_Load(object sender, EventArgs e)
行 39:     {        
行 40:         _Ac = BizClubActivities.FindById(id);
行 41:         if (_Ac == null)
行 42:             ErrorHelper.Throw404Error();

源文件: d:\VsharingV4\Event.vsharing.com\Show.aspx.cs    行: 40

堆栈跟踪:


[SqlException (0x80131904): 在与 SQL Server 建立连接时出现与网络相关的或特定于实例的错误。未找到或无法访问服务器。请验证实例名称是否正确并且 SQL Server 已配置为允许远程连接。 (provider: SQL Network Interfaces, error: 26 - 定位指定的服务器/实例时出错)]
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +357
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +79
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +201
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +156
   System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +22
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +92
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +219
   System.Data.SqlClient.SqlConnection.Open() +101
   AMT.Framework.Data.SqlEntry.ConnectionContext..ctor(DbDriver dd) +88
   AMT.Framework.Data.SqlEntry.DataProvider.NewConnection(CallbackVoidHandler callback) +89
   AMT.Framework.Data.SqlEntry.DataProvider.UsingConnection(CallbackVoidHandler callback) +99
   AMT.Framework.Data.SqlEntry.DataProvider.ExecuteDataReader(SqlStatement Sql, Type ReturnType, CallbackObjectHandler`1 callback) +164
   AMT.Framework.Data.DbContext.DataLoadDirect(IProcessor ip, Type ReturnType, Type DbObjectType, SqlStatement Sql, Boolean UseIndex) +330
   AMT.Framework.Data.DbContext.DataLoadDirect(IProcessor ip, Type DbObjectType, SqlStatement Sql, Boolean UseIndex) +52
   AMT.Framework.Data.DbContext.DataLoadDirect(IProcessor ip, Type DbObjectType, SqlStatement Sql) +46
   AMT.Framework.Data.DbContext.DataLoad(IProcessor ip, Type DbObjectType, FromClause from, WhereCondition iwc, OrderBy oc, Range lc) +160
   AMT.Framework.Data.DbContext.FillCollection(IList list, Type DbObjectType, WhereCondition iwc, OrderBy oc, Range lc) +83
   AMT.Framework.Data.DbContext.GetObject(Type t, WhereCondition c, OrderBy ob, Range r) +105
   AMT.Framework.Data.DbContext.GetObject(Type t, Object key) +451
   AMT.Framework.Data.DbContext.GetObject(Object key) +128
   AMT.Framework.Data.DbEntry.GetObject(Object key) +96
   AMT.Framework.Data.Definition.DbObjectModelBase`2.FindById(TKey Id) +135
   Show.Page_Load(Object sender, EventArgs e) in d:\VsharingV4\Event.vsharing.com\Show.aspx.cs:40
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693


版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.8.4676.0