public async void CheckInBook()
{
if (!PerformCheckInValidation())
{
DisplayErrorMessage(BookCheckInConditionError);
return;
}
var transaction = new BookTransaction
{
Customer = new Customer
{
CustomerId = SuppliedCustomerId
},
Book = new Book
{
BookId = SelectedBook.BookId
},
CheckIn = DateTime.Now
};
bool success = await bookManager.CheckInBook(transaction).ConfigureAwait(false);
SuppliedCustomerId = 0;
OnPropertyChanged("SuppliedCustomerId");
if (success)
{
++SelectedBook.AvailableCopies;
CollectionViewSource.GetDefaultView(this.Books).Refresh();
DisplayInfoMessage(BookCheckInSuccess, "Success!");
}
else
{
DisplayErrorMessage(BookCheckInError);
}
}