private async void btnSearch_Click(object sender, EventArgs e)
{
String keyword = txtKeyword.Text.Trim();
//List<Book> books = await new BookBUS1().Search(keyword);
List <Book> books = new BookBUS2().Search(keyword);
gridBook.BeginInvoke(new MethodInvoker(delegate { gridBook.DataSource = books; })); // set asynchronous datasource
}
private async void btDelete_Click(object sender, EventArgs e)
{
DialogResult dialogResult = MessageBox.Show("ARE YOU SURE ?", "CONFIRMATION", MessageBoxButtons.YesNo);
if (dialogResult == DialogResult.Yes)
{
int code = int.Parse(txtBookCode.Text);
//bool result = await new BookBUS1().Delete(code);
bool result = new BookBUS2().Delete(code);
if (!result)
{
MessageBox.Show("SORRY BABY !!!");
}
}
}
private async void gridBook_SelectionChanged(object sender, EventArgs e)
{
if (gridBook.SelectedRows.Count > 0)
{
int code = int.Parse(gridBook.SelectedRows[0].Cells["Code"].Value.ToString());
//Book book = await new BookBUS1().GetDetails(code);
Book book = new BookBUS2().GetDetails(code);
if (book != null)
{
txtBookCode.Text = book.Code.ToString();
txtBookName.Text = book.Name.ToString();
txtBookAuthor.Text = book.Author.ToString();
txtBookPrice.Text = book.Price.ToString();
}
}
}
private async void btUpdate_Click(object sender, EventArgs e)
{
Book newBook = new Book()
{
Code = int.Parse(txtBookCode.Text.Trim()),
Name = txtBookName.Text.Trim(),
Author = txtBookAuthor.Text.Trim(),
Price = int.Parse(txtBookPrice.Text.Trim())
};
//bool result = await new BookBUS1().Update(newBook);
bool result = new BookBUS2().Update(newBook);
if (!result)
{
MessageBox.Show("SORRY BABY !!!");
}
}