Commit the transaction when it comes to quote '
'System. Data. The Entity. Proceeds. DbUpdateException: An error occurred while updating the entries. See the inner exception for details. - & gt; System. Data. The Entity. The Core. UpdateException: An error occurred while updating the entries. See the inner exception for details. - & gt; System. The Data. SqlClient. SqlException: perform timeout expired, complete the operation has timed out or server response, before - & gt; System.Com ponentModel. Win32Exception: waiting for the operation of the outdated 'mistakes, mostly in the form of adjusting the database connection time online data access problem, after the adjustment, the problem remains, do you have a great god come in to help see the problem?