private void PhiếuMượnChiTiếtToolStripMenuItem_Click(object sender, EventArgs e)
{
PhieuMuonChiTiet phieuMuonChiTiet = new PhieuMuonChiTiet();
phieuMuonChiTiet.Show();
this.Hide();
}
public void check()
{
SqlConnection connect = openSQL();
string queryThuThu = "select * from tblThuThu where maThuThu = '" + taiKhoan.Text + "'and email = '" + matKhau.Text + "';";
SqlCommand cmdThuThu = new SqlCommand(queryThuThu, connect);
SqlDataReader readerThuThu = cmdThuThu.ExecuteReader();
if (readerThuThu.HasRows)
{
PhieuMuonChiTiet phieuMuonChiTiet = new PhieuMuonChiTiet();
phieuMuonChiTiet.Show();
this.Hide();
}
else
{
const string message = "Tài khoản hoặc mật khẩu sai!";
const string caption = "Đăng nhập";
MessageBox.Show(message, caption, MessageBoxButtons.OK);
taiKhoan.Focus();
}
connect.Close();
}