[SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)]
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +428
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.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.DataQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator() +35
System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) +7890598
System.Linq.Enumerable.ToList(IEnumerable`1 source) +61
CeDiyez.Dal.Linq.DataBaseProcessBase`2.Get(Expression`1 query) +244
System.Data.Linq.DataContext.SubmitChanges(ConflictMode failureMode) +331
CeDiyez.Ortak.IsEnstituDersi(String derskodu) +89
System.Data.Linq.DataContext.SubmitChanges() +19
CeDiyez.PL.WebForms.UserControls.Genel.DersRaporu.Page_Load(Object sender, EventArgs e) +85
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
CeDiyez.Dal.Linq.DataBaseProcessBase`2.Insert(T entity, String IdPropertyName) +306
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Data.SqlClient.SqlConnection.Open() +122
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Data.Linq.DataContext.SubmitChanges(ConflictMode failureMode) +202
System.Data.Linq.DataContext.SubmitChanges(ConflictMode failureMode) +331
System.Data.Linq.DataContext.SubmitChanges() +19
CeDiyez.Dal.Linq.DataBaseProcessBase`2.Insert(T entity, String IdPropertyName) +306
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