private void Back_Click(object sender, EventArgs e)
{
this.Hide();
select ff = new select();
ff.Show();
ff.Show();
}
private void Login1_Click(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection(@"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=C:\Users\Szalma Szilard\Documents\Data.mdf;Integrated Security=True;Connect Timeout=30");
SqlDataAdapter sda = new SqlDataAdapter("select count(*) from login where username ='******' and password ='******'", conn);
DataTable dt = new DataTable();
sda.Fill(dt);
if (dt.Rows[0][0].ToString() == "1")
{
this.Hide();
select ff = new select();
ff.Show();
}
else
{
MessageBox.Show("please enter correct username and password", "alert", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}