IObjectSpace.ModifiedChanged Event

Occurs when the current Object Space’s IObjectSpace.IsModified state is changed.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v20.2.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

event EventHandler ModifiedChanged

VB.NET

Event ModifiedChanged As EventHandler

Event Data

The ModifiedChanged event's data class is EventArgs.

Remarks

If you implement the IObjectSpace interface in the BaseObjectSpace class’ descendant, you don’t have to raise the ModifiedChanged event. It is raised in the protected BaseObjectSpace.SetIsModified method after the BaseObjectSpace.IsModified property has changed.

Handle this event to execute custom code when the Object Space’s Modified state is changed. However, it is already handled internally to change Actions states in dependence of the IObjectSpace.IsModified property value.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ModifiedChanged 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-show-an-asterisk-in-the-window-title-when-an-object-in-a-view-is-modified-e1703/CS/WinSolution.Module/DirtyTitleWindowController.cs#L17

if(Window.View is ObjectView) {
    Window.View.ObjectSpace.ModifiedChanged += ObjectSpace_ModifiedChanged;
    Window.View.ObjectSpace.Reloaded += ObjectSpace_Reloaded;

VB.NET

XAF_how-to-show-an-asterisk-in-the-window-title-when-an-object-in-a-view-is-modified-e1703/VB/WinSolution.Module/DirtyTitleWindowController.vb#L19

If TypeOf Window.View Is ObjectView Then
    AddHandler Window.View.ObjectSpace.ModifiedChanged, AddressOf ObjectSpace_ModifiedChanged
    AddHandler Window.View.ObjectSpace.Reloaded, AddressOf ObjectSpace_Reloaded