private void addEquipmentButton_Click(object sender, RoutedEventArgs e)
        {
            string opId;

            if (operatorNameBox.SelectedValue == null)
            {
                opId = "";
            }
            else
            {
                opId = operatorNameBox.SelectedValue.ToString();
            }
            string resp = DBManager.InsertIntoEquipments("('" + equipmentIdBox.Text + "','" + machineTypeBox.SelectedValue.ToString() + "','" + plateNumberBox.Text + "','" + manufacturedYearBox.Text + "','" + currentLocationBox.SelectedValue.ToString() + "','" + currentStatusBox.SelectedValue.ToString() + "','" + investmentCostBox.Text + "','" + servicedEveryBox.Text + "','" + equipmentTypeBox.SelectedValue.ToString() + "','" + insuranceStatusBox.SelectedValue.ToString() + "','" + opId + "','" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "')");

            if (resp.Contains("Success"))
            {
                myMessageBox mm = new myMessageBox("Equipment Added Successfully", "Success", "OK", 0);
                mm.ShowDialog();

                //MessageBox.Show("Success", "Equipment added Succesfully!", MessageBoxButton.OK, MessageBoxImage.Information);
                this.Close();
            }
            else
            {
                myMessageBox mm = new myMessageBox(resp, "Error", "OK", 1);
                mm.ShowDialog();

                // MessageBox.Show("error", resp, MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }