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Server Error in '/' Application.

Cannot open database "DBqbu" requested by the login. The login failed.Login failed for user 'dangbo'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Cannot open database "DBqbu" requested by the login. The login failed.Login failed for user 'dangbo'. Source Error:
Line 31: Application.Lock(); Line 32: Application["online"] = (Convert.ToInt16(Application["online"].ToString()) + 1).ToString(); Line 33: CounterController.Update(CounterController.GetCounter(1)+1); Line 34: Application["TongSo"] = CounterController.GetCounter(1).ToString() ; Line 35: Application.UnLock();
Source File: c:\New\web\web\danguy.quangbinhuni.edu.vn\Global.asax Line: 33 Stack Trace:
[SqlException (0x80131904): Cannot open database "DBqbu" requested by the login. The login failed. Login failed for user 'dangbo'.] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4890359 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194 System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2412 System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +35 System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject, Boolean withFailover) +247 System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +1349 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +225 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +189 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +185 System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +31 System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +431 System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66 System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +499 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +65 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +117 System.Data.SqlClient.SqlConnection.Open() +122 System.Data.Linq.SqlClient.SqlConnectionManager.UseConnection(IConnectionUser user) +44 System.Data.Linq.SqlClient.SqlProvider.get_IsSqlCe() +45 System.Data.Linq.SqlClient.SqlProvider.InitializeProviderMode() +20 System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +57 System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute(Expression expression) +49 System.Linq.Queryable.First(IQueryable`1 source) +269 VNPTQuangBinh.Bussiness.BO.CounterController.GetCounter(Int32 LoaiMenu) in D:\Cac du an phan mem\DanguyQBU\VNPTQuangBinh.Bussiness\BO\CounterController.cs:25 ASP.global_asax.Session_Start(Object sender, EventArgs e) in c:\New\web\web\danguy.quangbinhuni.edu.vn\Global.asax:33 System.Web.SessionState.SessionStateModule.RaiseOnStart(EventArgs e) +8880868 System.Web.SessionState.SessionStateModule.CompleteAcquireState() +237 System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +504 System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +66 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
Version Information: Microsoft .NET Framework Version:2.0.50727.8000; ASP.NET Version:2.0.50727.8001

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