private void lstLockers_SelectedIndexChanged(object sender, EventArgs e)
 {
     if (lstLockers.SelectedIndex > -1)
     {
         btnAddNew.Visible  = false;
         btnSave.Visible    = true;
         lockItem           = new Locker((int)lstLockers.SelectedValue);
         txtLockerName.Text = lockItem.getName();
     }
 }
        private void lstOpenLockers_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (lstOpenLockers.SelectedIndex > -1)
            {
                chosenLocker = new Locker((int)lstOpenLockers.SelectedValue);

                lblLockerName.Text    = chosenLocker.getName();
                lblLockerAdmin.Text   = chosenLocker.getKeyHolder1();
                lblLockerLabUser.Text = chosenLocker.getKeyHolder2();
                lblDateFrom.Text      = myLogHangle.covertDateStringToString(chosenLocker.getDateFrom().ToString());
                chosenLocker.assignDeviceList(lstLockerDevices);
                dateLockerTo.TodayDate = chosenLocker.getDateTo();
                dateLockerTo.SetDate(chosenLocker.getDateTo());
                TimeSpan temp = chosenLocker.getDateTo() - DateTime.Today;
                lblLockersDLeft.Text = temp.Days.ToString() + " days left";

                if (lstLockerDevices.Items.Count > 0)
                {
                    lstLockerDevices.SelectedIndex = 0;
                    lstLockerDevices_SelectedIndexChanged(sender, e);
                }
                else
                {
                    lblLockerDName.Text   = "";
                    lblLockerDIMIE.Text   = "";
                    lblLockerDModel.Text  = "";
                    lblLockerDSerial.Text = "";
                    imgLockerDimg.Image   = imgList.Images[3];
                }
            }
            else
            {
                lblLockerName.Text    = "";
                lblLockerAdmin.Text   = "";
                lblLockerLabUser.Text = "";

                lblDateFrom.Text       = "";
                dateLockerTo.TodayDate = DateTime.Now;
                dateLockerTo.SetDate(DateTime.Now);
                lblLockersDLeft.Text = "";

                lblLockerDName.Text   = "";
                lblLockerDIMIE.Text   = "";
                lblLockerDModel.Text  = "";
                lblLockerDSerial.Text = "";
                imgLockerDimg.Image   = imgList.Images[3];
            }
        }