''标签解析异常!
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 WebX.Repository.Database.OpenSharedConnection() in E:\NET\WebX.Core\Repository\Database\Database.cs:line 724 at WebX.Repository.Database.d__101`1.MoveNext() in E:\NET\WebX.Core\Repository\Database\Database.cs:line 1229 at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source) at WebX.Repository.Database.SingleOrDefault[T](String sql, Object[] args) in E:\NET\WebX.Core\Repository\Database\Database.cs:line 1743 at WebX.Repository.Database.SingleOrDefault[T](Object primaryKey) in E:\NET\WebX.Core\Repository\Database\Database.cs:line 1730 at WebX.Service.DbBase`1.SingleOrDefault[T](Object primaryKey) in E:\NET\WebX.Core\Repository\Database\DbBase.cs:line 294 at WebX.Label.Dynamic.column.GetColumnInfo() in E:\NET\WebX.Core\Label\Dynamic\column.cs:line 72 at WebX.Label.Dynamic.column.Render(HtmlTextWriter output) in E:\NET\WebX.Core\Label\Dynamic\column.cs:line 58