protected void btnSearchBook_Click(object sender, EventArgs e)
{
string search = txtCodeBook.Text;
EntClsBook book = bsn_book.checkBook2(search);
showBook(book);
btnNextLoan.Enabled = true;
}
protected void btnSearchBook_Click(object sender, EventArgs e)
{
string search = txtSearchBook.Text;
EntClsBook book = bsn_book.checkBook2(search);
showBook(book);
txtTitle.Enabled = true;
txtStock.Enabled = true;
txtCode.Enabled = true;
txtAuthor.Enabled = true;
txtStateB.Enabled = true;
btnNextLoan.Enabled = true;
}