/// <summary>
/// Initializes a new instance of the MainViewModel class. Initializes DataFields
/// </summary>
public MainViewModel(IDataService <TEntity> dataService)
{
_book = new TEntity();
Books = dataService.GetBooks();
_index = 0;
_dataService = dataService;
Add = new RelayCommand(() =>
{
var add = GetClone(_book);
Books.Add(add);
_dataService.AddBook(add);
});
Remove = new RelayCommand(() =>
{
if (_index < Books.Count && _index >= 0)
{
_dataService.RemoveBook(Books[Index]);
Books.RemoveAt(Index);
}
});
Modify = new RelayCommand(() =>
{
GetClone(Book, Books[Index]);
_dataService.ModifyBook(Books[Index]);
});
}
public void Post([FromBody] Book book)
{
if (book is null)
{
throw new Exception("Input is null");
}
_dataService.AddBook(book);
}
public async Task <IActionResult> Create([Bind("Id,Title,PublishedYear,PageNumber,ISBN,AgeLimit,AuthorId,IsActive")] Book book)
{
if (ModelState.IsValid)
{
await _dataService.AddBook(book);
return(RedirectToAction(nameof(Index)));
}
ViewData["AuthorId"] = new SelectList(await _dataService.GetAllAuthors(), "Id", "Name", book.AuthorId);
return(View(book));
}
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]));
});
}
