public virtual void Navigate(object entityOrLite, NavigateOptions options)
{
if (entityOrLite == null)
{
throw new ArgumentNullException("entity");
}
Type type = entityOrLite is Lite <Entity>?((Lite <Entity>)entityOrLite).EntityType : entityOrLite.GetType();
OpenIndependentWindow(() =>
{
NormalWindow win = CreateNormalWindow();
win.SetTitleText(NormalWindowMessage.Loading0.NiceToString().FormatWith(type.NiceName()));
return(win);
},
afterShown: win =>
{
try
{
ModifiableEntity entity = entityOrLite as ModifiableEntity;
if (entity == null)
{
Lite <Entity> lite = (Lite <Entity>)entityOrLite;
entity = lite.EntityOrNull ?? Server.RetrieveAndForget(lite);
}
EntitySettings es = AssertViewableEntitySettings(entity);
if (!es.OnIsNavigable(true))
{
throw new Exception("{0} is not navigable".FormatWith(entity));
}
if (entity is EmbeddedEntity)
{
throw new InvalidOperationException("ViewSave is not allowed for EmbeddedEntities");
}
Control ctrl = options.View != null ? options.View() : es.CreateView(entity, null);
ctrl = es.OnOverrideView(entity, ctrl);
SetNormalWindowEntity(win, (ModifiableEntity)entity, options, es, ctrl);
}
catch
{
win.Close();
throw;
}
},
closed: options.Closed);
}
private void RecalculateVisibility(object oldValue, object newValue)
{
if (AutoChild)
{
// when datacontext change is fired but its not loaded, it's quite possible that some Common.Routes are not working yet
if (newValue == null /* || !IsLoaded*/)
{
Child = null;
}
else
{
EntitySettings es = Navigator.Manager.EntitySettings.TryGetC(newValue.GetType());
if (es == null)
{
Child = new TextBox
{
Text = "No EntitySettings for {0}".FormatWith(newValue.GetType()),
Foreground = Brushes.Red,
FontWeight = FontWeights.Bold
}
}
;
else
{
Child = es.CreateView((ModifiableEntity)newValue, Common.GetPropertyRoute(this));
}
}
}
if (Child != null)
{
if (newValue == null)
{
Child.Visibility = Visibility.Hidden;
}
else
{
Child.Visibility = Visibility.Visible;
}
if (oldValue != null && newValue != null)
{
Child.BeginAnimation(UIElement.OpacityProperty, animation);
}
}
}
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);
}
