private void button4_Click(object sender, EventArgs e) { this.Hide(); WelcomeOE vc = new WelcomeOE(); vc.Show(); }
private void button1_Click(object sender, EventArgs e) { SqlConnection con = new SqlConnection(@"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=C:\Users\Bhagya Udayanandani\Documents\Data.mdf;Integrated Security=True;Connect Timeout=30"); SqlDataAdapter sda = new SqlDataAdapter("Select count(*) from Ologin where Username='******'and Password='******'", con); DataTable dt = new DataTable(); sda.Fill(dt); if (dt.Rows[0][0].ToString() == "1") { this.Hide(); WelcomeOE a = new WelcomeOE(); a.Show(); } else { MessageBox.Show("Please check your password and username"); } }