public static bool HasChanges(this FrameworkElement element) { if (element is IHasChangesHandler hch) { return(hch.HasChanges()); } return(GraphExplorer.HasChanges((Modifiable)element.DataContext)); }
public static ImportAction Save(Entity entity) { if (!GraphExplorer.HasChanges(entity)) { return(ImportAction.NoChanges); } var result = entity.IsNew ? ImportAction.Inserted : ImportAction.Updated; using (OperationLogic.AllowSave(entity.GetType())) entity.Save(); return(result); }
public virtual object View(object entityOrLite, ViewOptions options) { if (entityOrLite == null) { throw new ArgumentNullException("entity"); } ModifiableEntity entity = entityOrLite as ModifiableEntity; Type liteType = null; if (entity == null) { liteType = Lite.Extract(entityOrLite.GetType()); entity = Server.Retrieve((Lite <Entity>)entityOrLite); } EntitySettings es = AssertViewableEntitySettings(entity); if (!es.OnIsViewable()) { throw new Exception("{0} is not viewable".FormatWith(entity)); } Control ctrl = options.View ?? es.CreateView(entity, options.PropertyRoute); ctrl = es.OnOverrideView(entity, ctrl); NormalWindow win = CreateNormalWindow(); SetNormalWindowEntity(win, (ModifiableEntity)entity, options, es, ctrl); if (options.AllowErrors != AllowErrors.Ask) { win.AllowErrors = options.AllowErrors; } bool?ok = win.ShowDialog(); if (ok != true) { return(null); } object result = win.DataContext; if (liteType != null) { Entity ident = (Entity)result; bool saveProtected = ((ViewOptions)options).RequiresSaveOperation ?? EntityKindCache.RequiresSaveOperation(ident.GetType()); if (GraphExplorer.HasChanges(ident)) { if (saveProtected) { throw new InvalidOperationException("The lite '{0}' of type '{1}' is SaveProtected but has changes. Consider setting SaveProtected = false in ViewOptions".FormatWith(entityOrLite, liteType.TypeName())); } return(ident.ToLiteFat()); } return(ident.ToLite()); } return(result); }