private void KoszykButton_Click(object sender, EventArgs e) { if (MessageBox.Show("Are you sure you want to remove your account", "Message", MessageBoxButtons.YesNo) == DialogResult.Yes) { connection.Open(); string queryDeleteOrder = "Delete From orders where UserID = " + UserId; MySqlCommand cmd1 = new MySqlCommand(queryDeleteOrder, connection); cmd1.ExecuteNonQuery(); string queryDeleteUser = "******" + UserId; MySqlCommand cmd2 = new MySqlCommand(queryDeleteUser, connection); cmd2.ExecuteNonQuery(); FLogin fLogin = new FLogin(); this.Hide(); activeForm.Hide(); fLogin.Show(); } }