public override Task ActivateAsync(object parameter, IDictionary <string, object> state, NavigationMode mode)
{
if (parameter is int itemId)
{
var item = _database.Get <Item>(itemId);
Items.Add(item);
_previousTags = item.Tags;
Tags = new ObservableCollection <Tag>(item.Tags);
}
else if (parameter is List <Item> itemList)
{
Items.AddRange(itemList);
}
UpdateSuggestions();
return(Task.FromResult(true));
}