OptimisticLockingReadBehavior Enum

Lists the values that specify how XPO behaves when reloading changed objects (objects with different versions).

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v24.2.dll

Declaration

C#

public enum OptimisticLockingReadBehavior

VB.NET

Public Enum OptimisticLockingReadBehavior

Members

Name	Description
Default	The default behavior can be changed by setting the XpoDefault.OptimisticLockingReadBehavior property.
Ignore	The changed objects are not reloaded.
ReloadObject	The changed objects are automatically reloaded.
Mixed	If a transaction has been started, the changed objects are not reloaded. Otherwise, the changed objects are automatically reloaded. For example, transaction starts after you modify objects in the session.
ThrowException	An exception is thrown.
MergeCollisionIgnore	When the client-side and database values of a property are different, the client-side value persists. When field-level tracking is disabled (see Session.TrackPropertiesModifications), this value is treated like Mixed.
MergeCollisionThrowException	When the client-side and database values of a property are different, an exception is thrown. When field-level tracking is disabled (see Session.TrackPropertiesModifications), this value is treated like the Mixed.
MergeCollisionReload	When the client-side and database values of a property are different, the database value is reloaded. When field-level tracking is disabled (see Session.TrackPropertiesModifications), this value is treated like Mixed.

Related API Members

The following properties accept/return OptimisticLockingReadBehavior values:

• OptimisticLockingReadBehaviorAttribute.Behavior
• Session.OptimisticLockingReadBehavior
• XPClassInfo.OptimisticLockingReadBehavior
• XpoDefault.OptimisticLockingReadBehavior

Remarks

The values listed by this enumeration, except the Default value, are used to set the Session.OptimisticLockingReadBehavior and XpoDefault.OptimisticLockingReadBehavior properties.