IObjectSpace.ObjectReloaded Event

Occurs after an object is reloaded from the database.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v23.2.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

event EventHandler<ObjectManipulatingEventArgs> ObjectReloaded

VB.NET

Event ObjectReloaded As EventHandler(Of ObjectManipulatingEventArgs)

Event Data

The ObjectReloaded event's data class is ObjectManipulatingEventArgs. The following properties provide information specific to this event:

Property	Description
Object	Provides access to the object that is being manipulated.

Remarks

In the BaseObjectSpace descendant, invoke the BaseObjectSpace.OnObjectReloaded method to raise the ObjectReloaded event.

The following code reloads the parent Detail View when one of the child objects is reloaded.

C#

using DevExpress.ExpressApp;
using YourSolutionName.Module.BusinessObjects;

namespace YourSolutionName.Module.Controllers {
    public class MyViewController : ObjectViewController<DetailView, Parent> {
        protected override void OnActivated() {
            base.OnActivated();
            ObjectSpace.ObjectReloaded += ObjectSpace_ObjectReloaded;
        }
        private void ObjectSpace_ObjectReloaded(object sender, ObjectManipulatingEventArgs e) {
            Child child = e.Object as Child;
            if (child != null && ReferenceEquals(child.Parent, View.CurrentObject)) {
                View.Refresh();
            }
        }
        protected override void OnDeactivated() {
            ObjectSpace.ObjectReloaded -= ObjectSpace_ObjectReloaded;
            base.OnDeactivated();
        }
    }
}

VB.NET

Imports DevExpress.ExpressApp
Imports YourSolutionName.Module.BusinessObjects

Namespace YourSolutionName.Module.Controllers
    Public Class MyViewController
        Inherits ObjectViewController(Of DetailView, Parent)

        Protected Overrides Sub OnActivated()
            MyBase.OnActivated()
            AddHandler ObjectSpace.ObjectReloaded, AddressOf ObjectSpace_ObjectReloaded
        End Sub

        Private Sub ObjectSpace_ObjectReloaded(ByVal sender As Object, ByVal e As ObjectManipulatingEventArgs)
            Dim child As Child = TryCast(e.Object, Child)

            If child IsNot Nothing AndAlso ReferenceEquals(child.Parent, View.CurrentObject) Then
                View.Refresh()
            End If
        End Sub

        Protected Overrides Sub OnDeactivated()
            RemoveHandler ObjectSpace.ObjectReloaded, AddressOf ObjectSpace_ObjectReloaded
            MyBase.OnDeactivated()
        End Sub
    End Class
End Namespace

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ObjectReloaded event.

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#

xaf-how-to-highlight-invalid-properties-when-a-view-is-activated/CS/DXSample.Module/ImmediateValidationController.cs#L25

ObjectSpace.ObjectChanged += ObjectSpace_ObjectChanged;
ObjectSpace.ObjectReloaded += ObjectSpace_ObjectReloaded;
View.CurrentObjectChanged += View_CurrentObjectChanged;

VB.NET

xaf-how-to-highlight-invalid-properties-when-a-view-is-activated/VB/DXSample.Module/ImmediateValidationController.vb#L25

AddHandler ObjectSpace.ObjectChanged, AddressOf ObjectSpace_ObjectChanged
AddHandler ObjectSpace.ObjectReloaded, AddressOf ObjectSpace_ObjectReloaded
AddHandler View.CurrentObjectChanged, AddressOf View_CurrentObjectChanged