When do Entity Framework Database Connections open and close?

Entity Framework intentionally closes connections

It is unnecessary due to...Dispose... handled by the using statement that is called. However, it is a good practice to call clearly....Close... once you're aware that connection won't be required going forward. For instance, you wish to release database connection covered by entity connection as soon as possible since you are unsure of how difficul...

When doing many updates in Entity Framework 4, how do you avoid locking the database?

That kind of lock is not produced by Entity Framework. EF does not allow pessimistic locking; it only supports optimistic concurrency....I believe that your SQL Server settings is to blame for the locking you encounter. The locks following each query could occur if your server's Transaction Isolation Level is configured to REPEATABLE READ. But I'm ...

The underlying provider failed on Open in entity framework connection

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Manually open and close connection with entity framework

I'm not sure how to implement it in VB, but you might attempt something similar in C#:... var datacontext = new EbosEntities(); try { datacontext.Connection.Open(); //do some work } finally { datacontext.Connection.Close(); }

Connection closed when doing Transaction rollback on Mysql with Entity Framework 6 and Devart provider

When rolling back a transaction if a connection has already been closed, an issue that caused the message "Connection must be opened" to appear has been corrected....DotConnect for MySQL 8.1 has a new version available. It can be obtained from the Registered Users' Area or the trial version of ...here... (for users with active subscription only). P...

EF: Should I explicitly close database connection when calling OpenConnection manually

Normally, EF automatically establishes and closes connections before/after an operation. But if you manually open a connection, EF won't shut it down for you once a database activity is finished....If a connection is not needed, it is advisable to cut it off. Additionally, if it's feasible in your circumstance, it's recommended practice for the DbC...

Entity Framework 6 error serverversion : (System.Data.SqlClient.SqlConnection)customerOrderContext.Database.Connection).ServerVersion

Zzz-5-Zzz is the exception, and it occurs when the connection is broken. This is not a problem....However, because you are merely returning the result and haven't used it, you clearly receive an empty result....new List<BusinessObjects.Customers>()... In your approach:...public IEnumerable<BusinessObjects.Customers> GetAllCustomers() { IList<Bu...

Entity Framework Hangs After Query Completes Before Connection is Closed

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.net core web api close database connection

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System.Data.SQLite.SQLiteException: unable to open database file (An exception occurred while initializing the database)

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