private void btnlogin_Click(object sender, EventArgs e) { conn = new SqlConnection(@"Data Source=(LocalDB)\v11.0;AttachDbFilename=C:\MY COURSES-4\PROG37721\Final-Project\studentfeemanagmentsystem\Students.mdf;Integrated Security=True"); try { string query = "Select * From login WHERE username=@user AND password=@pass"; conn.Open(); cmd = new SqlCommand(query, conn); cmd.Parameters.AddWithValue("@user", loginusr.Text.ToString()); cmd.Parameters.AddWithValue("@pass", loginpass.Text.ToString()); da = new SqlDataAdapter(cmd); DataSet ds = new DataSet(); da.Fill(ds); SqlDataReader sdr = cmd.ExecuteReader(); // If the record can be queried, it means passing verification, then open another form. if ((sdr.Read() == true)) { MessageBox.Show("The user is valid!"); this.Hide(); welcome obj10 = new welcome(); obj10.ShowDialog(); } else { MessageBox.Show("Username or Password is not correct !"); } } catch (Exception ex) { ex.ToString(); MessageBox.Show("Username not found"); } }
private void button1_Click(object sender, EventArgs e) { FileStream filestream = new FileStream("login.txt", FileMode.Open, FileAccess.Read); StreamReader reader = new StreamReader(filestream); string filereader = File.ReadAllText("login.txt"); int i = 0; while ((filereader = reader.ReadLine()) != null) { if (filereader.Contains(textBox1.Text) && filereader.Contains(textBox2.Text)) { i++; welcome obj10 = new welcome(); obj10.ShowDialog(); } // else if (filereader.Contains(textBox1.Text) != filereader.Contains(textBox2.Text)) //{ // MessageBox.Show("You are Not Register"); // } } }
private void button1_Click(object sender, EventArgs e) { welcome obj7 = new welcome(); obj7.ShowDialog(); }
private void homeToolStripMenuItem_Click(object sender, EventArgs e) { welcome obj11 = new welcome(); obj11.ShowDialog(); }