private void btnCRC_Click(object sender, EventArgs e)
{
if (txtBookNumber.Text != "")
{
if (!CopyDAO.CheckAvailableCopy(int.Parse(txtBookNumber.Text)))
{
MessageBox.Show("You can reserve this book.");
btnReserve.Enabled = true;
}
else
{
txtBookNumber.Text = "";
btnReserve.Enabled = false;
MessageBox.Show("This book still have available copy.");
}
}
else
{
MessageBox.Show("Book Code can not be blank.");
}
}
