Наследование: Catel.Data.ModelBase
        public CharacterSelectingViewModel(CharacterSelectingModel model)
        {

            CharacterSelecting = model;

            SelectCommand = new Command(SelectCharacter);
            SearchCharacterCommand = new Command(SearchCharacter);
        }
        private void SelectCharacter()
        {
            var sm = new CharacterSelectingModel();

            _uiVisualizerService.ShowDialog(new CharacterSelectingViewModel(sm), (sender, e) =>
            {
                if (!Characters.Any(p => p.Equals(sm.SelectedCharacter, StringComparison.OrdinalIgnoreCase)) && !string.IsNullOrEmpty(sm.SelectedCharacter))
                {
                    Characters.Add(sm.SelectedCharacter);
                    SelectedCharacter = sm.SelectedCharacter;
                }
            });
        }