private void sellPizzaToolStripMenuItem_Click(object sender, EventArgs e) { this.Close(); SellPizza sp = new SellPizza(); sp.Show(); }
private void buttonLogIn_Click(object sender, EventArgs e) { SqlDataAdapter sda = new SqlDataAdapter("Select count(*) from PizzaEmploye where E_Name='" + textBoxUserName.Text + "' and Password='******'", cn); DataTable dt = new DataTable(); sda.Fill(dt); if (dt.Rows[0][0].ToString() == "1") { this.Hide(); SellPizza my = new SellPizza(); my.Show(); } else { MessageBox.Show("Username & Password is invalid"); } }