private ViewBooks GetClone(ViewBooks book)
{
return(new ViewBooks()
{
Author = book.Author, Book = book.Book
});
}
public MainViewModel(IDataService dataService)
{
_book = new ViewBooks();
Books = new ObservableCollection <ViewBooks>(dataService.ConvertItem <ViewBooks>(dataService.GetItems));
_index = 0;
_dataService = dataService;
Add = new RelayCommand(() =>
{
var add = GetClone(_book);
Books.Add(add);
var InsertItem = _dataService.ConvertItem <ViewBooks>(add);
_dataService.AddItem(InsertItem);
add.Id = InsertItem.Id;
});
Remove = new RelayCommand(() =>
{
if (_index < Books.Count && _index >= 0)
{
_dataService.RemoveItem(_dataService.ConvertItem <ViewBooks>(Books[Index]));
Books.RemoveAt(Index);
}
});
Modify = new RelayCommand(() =>
{
GetClone(Book, Books[Index]);
_dataService.ModifyItem(_dataService.ConvertItem(Books[Index]));
});
}
public MainViewModel(IDataService dataService)
{
Mapper.CreateMap <DataBooks, ViewBooks>().ReverseMap();
_book = new ViewBooks();
Books = new ObservableCollection <ViewBooks>();
foreach (var book in dataService.GetBooks())
{
//Null reference Exception!
Books.Add(_dataService.Set <ViewBooks>(book));
}
_index = 0;
_dataService = dataService;
Add = new RelayCommand(() =>
{
var add = GetClone(_book);
Books.Add(add);
var toService = _dataService.Reverse(add);
_dataService.AddBook(toService);
add.Id = toService.Id;
});
Remove = new RelayCommand(() =>
{
if (_index < Books.Count && _index >= 0)
{
_dataService.RemoveBook(_dataService.Reverse(Books[Index]));
Books.RemoveAt(Index);
}
});
Modify = new RelayCommand(() =>
{
GetClone(Book, Books[Index]);
_dataService.ModifyBook(Mapper.Map <DataBooks>(Books[Index]));
});
}
private void GetClone(ViewBooks from, ViewBooks to)
{
to.Book = from.Book;
to.Author = from.Author;
}
