UnitOfWork.CommitChanges() Method

Commits all the changes made to persistent objects to a data store.

Namespace : DevExpress.Xpo

Assembly : DevExpress.Xpo.v25.2.dll

NuGet Package : DevExpress.Xpo

Declaration

• C#
• VB.NET

public void CommitChanges()

Public Sub CommitChanges

Remarks

A Unit of Work tracks every change to every persistent object during a transaction that can affect a data store. Its CommitChanges method commits all the changes made to persistent objects to a data store. The only requirement for this is that the property setters call the XPBaseObject.OnChanged method.

Calling the CommitChanges method automatically calls Session.CommitTransaction (in explicit units of work, ExplicitUnitOfWork.CommitTransaction is called).

Note

If a save operation fails (for example, due to a database constraint violation), the following exceptions can be raised by XPO:

• LockingException
• SchemaCorrectionNeededException
• SqlExecutionErrorException
• ConstraintViolationException

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the CommitChanges() method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

• C#
• VB.NET

wpf-data-grid-implement-crud-operations/CS/CodeBehind/XPO/LocalData/Issues/DemoDataHelper.cs#L19

.ToArray();
uow.CommitChanges();
var rnd = new Random(0);

CriteriaOperatorsCheatSheet/CS/CriteriaOperatorCheatSheet/Tests/BaseTest.cs#L16

ConnectionHelper.AddOrder(uow, "FirstName1", 20);
    uow.CommitChanges();
}

XPO_how-to-implement-odata4-service-with-xpo-netcore/CS/ODataService/Helpers/ApiHelper.cs#L14

delta.CopyChangedValues(existing);
    uow.CommitChanges();
}

XPO_how-to-implement-odata4-service-with-xpo/CS/ODataService/Helpers/ApiHelper.cs#L19

delta.CopyChangedValues(existing);
    uow.CommitChanges();
}

how-to-bind-wpf-grid-to-data/CS/CodeBehind/XPO/InfiniteAsyncSource/Issues/DemoDataHelper.cs#L19

.ToArray();
uow.CommitChanges();
var rnd = new Random(0);

how-to-bind-wpf-grid-to-data/VB/CodeBehind/XPO/InfiniteAsyncSource/Issues/DemoDataHelper.vb#L16

End Function).ToArray()
uow.CommitChanges()
Dim rnd = New Random(0)

XPO_how-to-generate-a-sequential-number-for-a-business-object-within-a-database-transaction-e2620/VB/ExplicitUnitOfWorkDemo/SequenceGenerator.vb#L20

Public Sub Accept()
    euow.CommitChanges()
End Sub

XPO_how-to-import-a-large-data-set-using-xpo-efficiently-within-a-transaction-t333879/VB/XpoImport - VB/XpoImportHelper.vb#L35

Next current
    uow.CommitChanges()
End Using

XDL_how-to-convert-the-criteriaoperator-to-a-lambda-expression-to-use-it-for-iqueryable-e2596/VB/WindowsFormsApplication152/Form1.vb#L55

Try
    unitOfWork1.CommitChanges()
Catch exc As Exception

XPO_how-to-persist-metadata-e269/VB/Program.vb#L62

propCustomer.TypeAttributes.Add(attrOrdersCustomer)
    uof.CommitChanges()
End Using

See Also

CommitChangesAsync

UnitOfWork Class

UnitOfWork Members

DevExpress.Xpo Namespace