在建立与服务器的连接时出错。在连接到 SQL Server 2005 时，在默认的设置下 SQL Server 不允许进行远程连接可能会导致此失败。 (provider: 命名管道提供程序, error: 40 - 无法打开到 SQL Server 的连接)-Error creating a connection to the server. When connecting to SQL Server 2005, under the default settings SQL Server does not allow remote connections may cause this failure. (Provider: Named Pipes Provider, error: 40- Can not open connection to SQL Server)