private void btn_Login_Click(object sender, EventArgs e) { try { sqlConnect.Connect.Open(); SqlCommand cmdDisplay = new SqlCommand("SELECT * FROM TBLOGIN WHERE USERNAME =@USERNAME AND PASSWORD =@PASSWORD", sqlConnect.Connect); cmdDisplay.Parameters.AddWithValue("@USERNAME", txtUsername.Text.Trim()); cmdDisplay.Parameters.AddWithValue("@PASSWORD", txtPassword.Text.Trim()); SqlDataReader dr; dr = cmdDisplay.ExecuteReader(); if (dr.Read()) { //jika valid MessageBox.Show("Welcome, " + txtUsername.Text); MenuAdmin obj = new MenuAdmin(); obj.Show(); this.Hide(); } else { //jika invalid MessageBox.Show(" Invalid Username or Password"); } sqlConnect.Connect.Close(); } catch (Exception ex) { MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } }
private void button1_Click(object sender, EventArgs e) { MenuAdmin obj = new MenuAdmin(); obj.Show(); this.Hide(); }