private void signin_Click(object sender, EventArgs e) { try { string myconn = @"Data Source=(LocalDB)\v11.0;AttachDbFilename=C:\Users\Daljeet\Documents\Visual Studio 2013\Projects\Quiz\Quiz\Database1.mdf;Integrated Security=True;Connect Timeout=30"; SqlConnection con = new SqlConnection(myconn); SqlCommand command = new SqlCommand( "Select * from Student_Info where Username='******' and Password='******';", con); SqlDataReader myReader; con.Open(); myReader = command.ExecuteReader(); int count = 0; while (myReader.Read()) { count = count + 1; } if (count == 1) { welcome f2 = new welcome(); f2.Show(); this.Hide(); } else if (count > 1) { MessageBox.Show("Duplicate username and password.. Access denied"); } else MessageBox.Show("Username and password is not correct.. Please try again"); con.Close(); } catch (Exception Exception) { MessageBox.Show(Exception.Message); } }
private void button1_Click(object sender, EventArgs e) { welcome f2 = new welcome(); f2.Show(); this.Close(); }