private void btnDelete_Click(object sender, EventArgs e) { int ID = int.Parse(txtBookID.Text); bool r = bookData.deleteBook(ID); string s = (r == true ? "successful" : "fail"); MessageBox.Show("Delete " + s); getAllBooks(); }
private void btnDelete_Click(object sender, EventArgs e) { int ID; int.TryParse(txtBookID.Text, out ID); bool r = bm.deleteBook(ID); string s = (r == true ? "Successfull" : "fail"); MessageBox.Show(s); getAllBooks(); }