private void button1_Click(object sender, EventArgs e) { Formularios frm = new Formularios(); frm.ShowDialog(); this.Hide(); }
private void Btn_Login_Click(object sender, EventArgs e) { if (Txt_Ruc.Text.Trim() == "" && Txt_Pass.Text.Trim() == "") { MessageBox.Show("Los campos están vacíos", "Error"); } else { string query = "SELECT * FROM Usuarios WHERE Ruc=@ruc AND password=@pass"; SQLiteConnection conn = new SQLiteConnection("Data Source=Login.db; Version=3;"); conn.Open(); SQLiteCommand cmd = new SQLiteCommand(query, conn); cmd.Parameters.AddWithValue("@ruc", Txt_Ruc.Text); cmd.Parameters.AddWithValue("@pass", Txt_Pass.Text); SQLiteDataAdapter da = new SQLiteDataAdapter(cmd); DataTable dt = new DataTable(); da.Fill(dt); if (dt.Rows.Count > 0) { MessageBox.Show("Usted ha ingresado correctamente", "Loggeo Exitoso"); Formularios frm = new Formularios(); frm.ShowDialog(); conn.Close(); this.Hide(); } else { MessageBox.Show("Usuario o contraseña incorrecto", "Error"); } } }