System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at DataBase.Open() in c:\inetpub\vhosts\nmpx.cn\httpdocs\App_Code\database.cs:line 44 at DataBase.getDataTable(String sql) in c:\inetpub\vhosts\nmpx.cn\httpdocs\App_Code\database.cs:line 142 at DataBase.getDataTable(String sql) in c:\inetpub\vhosts\nmpx.cn\httpdocs\App_Code\database.cs:line 142