OptimisticLockAttribute.OptimisticLockHandling Property

Specifies conflict resolution mode in your EF Core-based XAF application.

Namespace: DevExpress.ExpressApp.DC

Assembly: DevExpress.ExpressApp.v25.1.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

public OptimisticLockHandling OptimisticLockHandling { get; set; }

VB.NET

Public Property OptimisticLockHandling As OptimisticLockHandling

Property Value

Type	Description
OptimisticLockHandling	Conflict resolution mode.

Available values:

Name	Description
Default	XAF uses the conflict resolution strategy from the previous hierarchy level. For example, if you specified the Default value for a class, XAF takes the option value from the Object Space.
None	XAF does not handle conflict resolution automatically. The user can choose the resolution strategy in a dialog window.
Merge	XAF merges changes automatically. If there are conflicts, XAF displays a pop-up window with resolution options.
Ignore	XAF ignores database changes and writes local values to the database.
Reload	XAF ignores local changes and overwrites them with database values.

Remarks

The following code snippet specifies Reload as conflict resolution mode:

CS\MainDemo.Module\BusinessObjects\Department.cs

using Microsoft.EntityFrameworkCore;

namespace MainDemo.Module.BusinessObjects;

[OptimisticLock(OptimisticLockDetection = OptimisticLockDetection.AllFields,OptimisticLockHandling = OptimisticLockHandling.Reload)]
public class Department : BaseObject, ITreeNode {
    //...
}