public GuitarListViewModel()
{
GetAllGuitars();
_editedGuitar = new GuitarViewModel(Blogic.NewGuitar());
_selectedGuitar = new GuitarViewModel(Blogic.NewGuitar());
_addedGuitar = new GuitarViewModel(Blogic.NewGuitar());
_addedGuitar.Validate();
_view = (ListCollectionView)CollectionViewSource.GetDefaultView(Guitars);
_addNewGuiatCommand = new RelayCommand(param => this.AddNewGuitar(), param => this.CanAddNewGuitar());
_deleteGuitarCommand = new RelayCommand(param => this.DeleteGuitar());
_editGuitarCommand = new RelayCommand(param => this.EditGuitar(), param => this.CanEditGuitar());
}
