Specifies whether the BaseObjectSpace is marked as modified (see BaseObjectSpace.IsModified) when a non-persistent property is changed.
Namespace: DevExpress.ExpressApp
Assembly: DevExpress.ExpressApp.v18.2.dll
public bool NonPersistentChangesEnabled { get; set; }Public Property NonPersistentChangesEnabled As Boolean| Type | Description |
|---|---|
| Boolean | true, to mark the Object Space as modified when a non-persistent property is changed; otherwise, false. The default is false. |
To set this property for all Object Spaces created by the application, handle the XafApplication.ObjectSpaceCreated event.
XAF Windows Forms Application - Program.cs (Program.vb) file:
public class Program {
//...
public static void Main(string[] arguments) {
//...
winApplication.Setup();
winApplication.ObjectSpaceCreated += winApplication_ObjectSpaceCreated;
winApplication.Start();
//...
}
static void winApplication_ObjectSpaceCreated(object sender, ObjectSpaceCreatedEventArgs e) {
BaseObjectSpace os = e.ObjectSpace as BaseObjectSpace;
if (os != null)
os.NonPersistentChangesEnabled = true;
}
}
XAF ASP.NET Application - Global.asax.cs (Global.asax.vb) file:
public class Global : System.Web.HttpApplication {
//...
protected void Session_Start(object sender, EventArgs e) {
WebApplication.SetInstance(Session, new MySolutionWebApplication());
WebApplication.Instance.ObjectSpaceCreated += Instance_ObjectSpaceCreated
//...
WebApplication.Instance.Setup();
WebApplication.Instance.Start();
}
void Instance_ObjectSpaceCreated(object sender, ObjectSpaceCreatedEventArgs e) {
BaseObjectSpace os = e.ObjectSpace as BaseObjectSpace;
if (os != null)
os.NonPersistentChangesEnabled = true;
}
}