internal protected virtual bool OnIsViewable(Type type, ModifiableEntity entity)
{
EntitySettings es = EntitySettings.TryGetC(type);
return
(es != null &&
es.HasView() &&
IsViewableBase(type, entity) &&
es.OnIsViewable());
}
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);
}
