星域世展展览(广州)有限公司
Constellar-WorldEx Exhibitions(Guangzhou)Co.,Ltd

联系电话:020-83276765
Contact Number:020-83276765

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Contact Email:pr@worldex.singex.com

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Media/Marketing/Advertising:19102097502

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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)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) at System.Data.SqlClient.SqlConnection.Open() at Whir.Repository.Database.OpenSharedConnection() at Whir.Repository.Database.ExecuteScalar[T](String sql, Object[] args) at Whir.Service.DbBase`1.ExecuteScalar[T](String sql, Object[] paras) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Service\DbBase.cs:line 168 at Whir.Label.Dynamic.column.GetColumnInfo() in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Label\Dynamic\column.cs:line 116 at Whir.Label.Dynamic.column.Render(HtmlTextWriter output) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Label\Dynamic\column.cs:line 67