private void button10_Click_2(object sender, EventArgs e)
{
string username, password;
username = SDU.Text;
password = SDP.Text;
username = username.Trim();
password = password.Trim();
idD = checkerD(username, password);
if (idD == -1)
{
MessageBox.Show("Wrong Username Or Password");
SDU.Clear();
SDP.Clear();
}
else
{
Form3 f3 = new Form3();
this.Hide();
f3.ShowDialog();
this.Close();
}
}