private void Delete_Click(object sender, RoutedEventArgs e)
{
var book = new RememberUtility.Model.Books();
// txtBookName
if (txtBookName.Text != "")
{
book.BookName = txtBookName.Text;
}
else
{
AddBookResult.Foreground = Brushes.Red;
AddBookResult.Content = "Book name cannot be null. Please choose a type";
}
if (txtBookName.Text == "")
{
AddBookResult.Foreground = Brushes.Red;
AddBookResult.Content = "You must input book name";
}
else // has input
{
var findBook = booksUtil.FindBookBy(txtBookName.Text);
if (findBook != null)
{
if (book.BookName.ToLower() == findBook.BookName.ToLower())
{
if (MessageBox.Show($"Found '{txtBookName.Text}'." +
$" Do you wanna to delete '{txtBookName.Text}'?", "Confirm delete",
MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
booksUtil.DeleteBook(book.BookName);
AddBookResult.Foreground = Brushes.Green;
AddBookResult.Content = "Delete Book Successful";
txtBookName.Text = string.Empty;
txtAuthor.Text = string.Empty;
lstListCategory.Text = string.Empty;
}
else
{
AddBookResult.Foreground = Brushes.YellowGreen;
AddBookResult.Content = $"Delete operate was canceled.";
}
}
} // input and not found
else
{
AddBookResult.Foreground = Brushes.Red;
AddBookResult.Content = $" Cannot find '{txtBookName.Text}'. Delete failed.";
}
}
}
private void btnFind_Click(object sender, RoutedEventArgs e)
{
books = booksUtil.FindBookBy(txtUpdateBookName.Text);
if (books != null)
{
lblResult.Foreground = Brushes.Green;
lblResult.Content = $"Found '{books.BookName}'.";
txtUpdateBookName.Text = books.BookName;
txtBookAuthor.Text = books.Author;
cbbListBookUpdateCategory.Text = books.Category;
btnUpadte.IsEnabled = true;
}
else
{
lblResult.Foreground = Brushes.Red;
lblResult.Content = $"Nothing found.";
}
}
private void Add_Click(object sender, RoutedEventArgs e)
{
var book = new RememberUtility.Model.Books();
// txtBookName
if (txtBookName.Text != "")
{
book.BookName = txtBookName.Text.Trim();
}
else
{
AddBookResult.Foreground = Brushes.Red;
AddBookResult.Content = "Book name cannot be null. Please choose a type";
}
// txtAuthor
if (txtAuthor.Text != "")
{
book.Author = txtAuthor.Text.Trim();
}
else
{
AddBookResult.Foreground = Brushes.Red;
AddBookResult.Content = "Author cannot be null. Please choose a type";
}
if (lstListCategory.SelectedIndex == -1)
{
AddBookResult.Foreground = Brushes.Red;
AddBookResult.Content = "Category aren't choose. Please choose a type";
}
if (txtAuthor.Text != "" && txtBookName.Text != "" && lstListCategory.SelectedIndex >= 0)
{
// use dynamic as type to cast your anonymous object to
dynamic categoryInList = (lstListCategory.SelectedItem);
book.Category = categoryInList as string;
var findBook = booksUtil.FindBookBy(txtBookName.Text);
if (findBook != null)
{
if (book.BookName.ToLower() != findBook.BookName.ToLower())
{
booksUtil.AddBook(book);
AddBookResult.Foreground = Brushes.Green;
if (book.BookName.Length <= 10)
{
AddBookResult.Content = $"Add '{book.BookName}' Successful";
}
else
{
AddBookResult.Content = "Add Book Successful";
}
txtBookName.Clear();
txtAuthor.Clear();
lstListCategory.Text = string.Empty;
}
else
{
AddBookResult.Foreground = Brushes.Red;
AddBookResult.Content = $"'{txtBookName.Text}' duplicate. Add failed.";
}
}
else
{
booksUtil.AddBook(book);
AddBookResult.Foreground = Brushes.Green;
AddBookResult.Content = "Add Book Successful";
txtBookName.Clear();
txtAuthor.Clear();
lstListCategory.Text = string.Empty;
}
}
}
