private void Application_Startup(object sender, StartupEventArgs e)
{
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true);
Configuration = builder.Build();
var serviceCollection = new ServiceCollection();
ConfigureServices(serviceCollection);
ServiceProvider = serviceCollection.BuildServiceProvider();
var dbOptions = ServiceProvider.GetService <DbContextOptions <BooksDBContext> >();
using (var context = new BooksDBContext(dbOptions))
{
context.Database.EnsureCreated();
}
var mainWindow = ServiceProvider.GetRequiredService <MainWindow>();
mainWindow.Show();
}
public IEnumerable <Book> Get(int pageNum)
{
int pageSize = 4;
int startPosition = (pageNum - 1) * pageSize;
using (var context = new BooksDBContext())
{
List <Book> books = context.Books.ToList();
if (books.Count >= startPosition)
{
return(books.Skip(startPosition).Take(pageSize));
}
else
{
return(new List <Book>());
}
}
}
public HomeController(BooksDBContext db)
{
context = db;
}
public BooksController(BooksDBContext context)
{
_context = context;
}
public BookService(BooksDBContext db)
{
_db = db;
}
public BooksController(BooksDBContext _myDBContext)
{
myDBContext = _myDBContext;
//myDBContext = new MyDBContext();//不需要 不然得传参数op
}
public InscriptionsController(BooksDBContext context)
{
_context = context;
}
public AuthorsController(BooksDBContext context)
{
_context = context;
}
public BooksController(BooksDBContext booksDBContext)
{
_BooksDBContext = booksDBContext;
}
