How do I use transactions in Entity Framework 6?

How do I use transactions in Entity Framework 6?

Test Code

1. using(SqlConnection con = new SqlConnection(“connectionString”))
2. {
3. con.Open();
4. using(var transaction = con.BeginTransaction())
5. {
6. // Do something….
7. //Pass this transaction to EF….
8. using (EntitiesContext context = new EntitiesContext(con, false))

Does Entity Framework use transactions by default?

Default transaction behavior By default, if the database provider supports transactions, all changes in a single call to SaveChanges are applied in a transaction. If any of the changes fail, then the transaction is rolled back and none of the changes are applied to the database.

When would you use SaveChanges false AcceptAllChanges ()?

Sometimes though the SaveChanges(false) + AcceptAllChanges() pairing is useful. The most useful place for this is in situations where you want to do a distributed transaction across two different Contexts.

What is transaction C#?

Properties of Transaction Ensures that all operations within the work unit are completed successfully; If the transaction fails then operations are rolled back to their previous state. Consistency. Ensures that the database properly changes states upon a successfully committed transaction. Isolation.

Why you should not use Entity Framework?

One potentially big issue: Entity Framework 1.0 does not support persistence ignorance. This means that your business layer has a dependency on your data access layer. If your entire application will be hosted in the same process (like a website on IIS) then this is no problem.

Does SaveChanges create transaction?

In Entity Framework, the SaveChanges() method internally creates a transaction and wraps all INSERT, UPDATE and DELETE operations under it. Multiple SaveChanges() calls, create separate transactions, perform CRUD operations and then commit each transaction.

What is LazyLoadingEnabled?

LazyLoadingEnabled is specifically set to true to prevent the related entities from loading in the context I’m using. A drug class has a list of drugidentity objects in it. public class Drug { public virtual List DrugIdentities { get; set; } }