private void Txt_Serach_TextChanged(object sender, TextChangedEventArgs e)
{
IBookstore bookstore = new BookstoreRefService();
IEnumerable <Book> books;
if (Txt_Serach.Text.Length == 0)
{
books = bookstore.GetBooks();
}
else
{
string searchOn = "";
if (Cmb_Search.SelectedIndex == 0)
{
searchOn = "title";
}
else
{
searchOn = "author";
}
books = bookstore.GetBookAsync(Txt_Serach.Text, searchOn);
}
Lst_Books.Items.Clear();
foreach (var book in books)
{
Lst_Books.Items.Add(book);
}
}
private void Btn_Save_Click(object sender, RoutedEventArgs e)
{
if (MessageBox.Show("Are you sure to add ?", "Question", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
if (Txt_Title.Text.Length == 0 || Txt_Author.Text.Length == 0)
{
MessageBox.Show("Check the inputs", "", MessageBoxButton.OK, MessageBoxImage.Error); return;
}
IBookstore bookstore = new BookstoreRefService();
Book book = new Book();
book.Title = Txt_Title.Text;
book.Author = Txt_Author.Text;
book.Price = Convert.ToDecimal(Txt_Price.Text.ToString());
book.InStock = Convert.ToInt16(Txt_InStock.Text);
bookstore.AddBook(book);
Lst_Books.Items.Add(book);
}
cancel();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
IBookstore bookstore = new BookstoreRefService();
IEnumerable <Book> books = bookstore.GetBooks();
Lst_Books.Items.Clear();
foreach (var book in books)
{
Lst_Books.Items.Add(book);
}
Cmb_Search.Items.Add("Search on Title");
Cmb_Search.Items.Add("Search on Author");
Cmb_Search.SelectedIndex = 0;
Txt_Author.Text = "";
Txt_InStock.Text = "0";
Txt_Price.Text = "0,0";
Txt_Title.Text = "";
}
private void Btn_delBook_Click(object sender, RoutedEventArgs e)
{
Button cmd = (Button)sender;
if (cmd.DataContext is Book)
{
Book deleteme = (Book)cmd.DataContext;
if (MessageBox.Show("Are you sure to delete ?", "Question",
MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
try
{
IBookstore bookstore = new BookstoreRefService();
bookstore.DeleteBook(deleteme);
Lst_Books.Items.Remove(deleteme);
}
catch (Exception ex)
{
{ MessageBox.Show(ex.Message.ToString(), "", MessageBoxButton.OK, MessageBoxImage.Error); return; }
}
}
}
}
private void Btn_SaveOrder_Click(object sender, RoutedEventArgs e)
{
if (String.IsNullOrEmpty(Txt_OrderNo.Text))
{
MessageBox.Show("You should input the Order number ", "", MessageBoxButton.OK, MessageBoxImage.Information); return;
}
if (String.IsNullOrEmpty(Txt_CustName.Text))
{
MessageBox.Show("You should input the Customer Name ", "", MessageBoxButton.OK, MessageBoxImage.Information); return;
}
if (String.IsNullOrEmpty(Txt_CustEmail.Text))
{
MessageBox.Show("You should input the Customer Email ", "", MessageBoxButton.OK, MessageBoxImage.Information); return;
}
if (MessageBox.Show("Are you sure to save Order ?", "Question",
MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
try
{
#region updating listbox lst_Book
List <Book> lstBooksToUpd = new List <Book>();
StringBuilder custLetter = new StringBuilder();
custLetter.Append("Customer notification letter").AppendLine().AppendLine();
for (int i = 0; i < Lst_Order.Items.Count; i++)
{
Book orderItem = new Book();
Lst_Order.SelectedIndex = i;
orderItem = (Book)Lst_Order.SelectedItems[0];
for (int j = 0; j < Lst_Books.Items.Count; j++)
{
Book book = new Book();
Lst_Books.SelectedIndex = j;
book = (Book)Lst_Books.SelectedItems[0];
if ((book.Title).Equals(orderItem.Title) && (book.Author).Equals(orderItem.Author))
{
if (orderItem.InStock > book.InStock)
{
custLetter.Append("- Required book: " + book.Title).AppendLine();
custLetter.Append(" Auther: " + book.Author).AppendLine();
custLetter.Append(" we have not enough quentity in stock ")
.AppendLine().AppendLine();
}
else
{
book.InStock = book.InStock - orderItem.InStock;
//update listbox
Lst_Books.Items.RemoveAt(j);
Lst_Books.Items.Insert(j, book);
// fill a list for which books to update. then send it to backend to update books.json
lstBooksToUpd.Add(new Book
{
Title = book.Title,
Author = book.Author,
Price = book.Price,
InStock = book.InStock
});
custLetter.Append("- Required book: " + book.Title).AppendLine();
custLetter.Append(" Auther: " + book.Author).AppendLine();
custLetter.Append(" have been purchased").AppendLine().AppendLine();
}
}
}
}
#endregion
// to notify the customer of the result - TODO: to write a procedure to send it to customer by email for example
MessageBox.Show(custLetter.ToString());
#region to update in stock balance in book.json as source data
if (lstBooksToUpd.Count > 0)
{
IBookstore bookstore = new BookstoreRefService();
bookstore.UpdateBooks(lstBooksToUpd.ToList());
}
#endregion
cancel(); // to clear inputs
}
catch (Exception ex)
{
{ MessageBox.Show(ex.Message.ToString(), "", MessageBoxButton.OK, MessageBoxImage.Error); return; }
}
}
}
