public override IVirtualizedElement <PropertyGridItemBase> CreateElement(PropertyGridItemBase data, object context) { if (propertyGridElement != null) { CreatePropertyGridItemElementEventArgs args = new CreatePropertyGridItemElementEventArgs(data); propertyGridElement.OnCreateItemElement(args); if (args.ItemElement != null) { return(args.ItemElement); } } if (data is PropertyGridItem) { return(new PropertyGridItemElement()); } if (data is PropertyGridGroupItem) { return(new PropertyGridGroupElement()); } return(base.CreateElement(data, context)); }