private void cb_user_SelectionChanged(object sender, SelectionChangedEventArgs e)
 {
     if (cb_user.SelectedIndex == 1)
     {
         UserShow us = new UserShow(borrowuser);
         us.ShowDialog();
     }
     if (cb_user.SelectedIndex == 2)
     {
         WrenchBorrowHistory  wbh = new WrenchBorrowHistory();
         List <BorrowHistory> bhl = wbh.GetByUser(Borrow.SelectByUser(SystData.userInfo.user.guid));
         UserBorrow           ub  = new UserBorrow(bhl);
         ub.ShowDialog();
     }
     this.cb_user.SelectedIndex = 0;
 }
 private void cb_wrench_SelectionChanged(object sender, SelectionChangedEventArgs e)
 {
     if (cb_wrench.SelectedIndex == 1)
     {
         if (!string.IsNullOrEmpty(this.wrenchbarcode.Text.Trim()))
         {
             GetWrenchInfo gwi = new GetWrenchInfo();
             wrenchinfo    wi  = gwi.GetWrenchinfo(this.wrenchbarcode.Text.Trim());
             if (wi == null)
             {
                 MessageAlert.Alert("没有任何详细信息!");
             }
             else
             {
                 WrenchShow us = new WrenchShow(wi);
                 us.ShowDialog();
             }
         }
     }
     if (cb_wrench.SelectedIndex == 2)
     {
         if (string.IsNullOrEmpty(this.wrenchbarcode.Text.Trim()))
         {
             return;
         }
         WrenchBorrowHistory wbh = new WrenchBorrowHistory();
         wrench w = Wrench.selectByBarcode(this.wrenchbarcode.Text.Trim());
         if (w == null)
         {
             return;
         }
         List <BorrowHistory> bhl = wbh.GetByUser(Borrow.SelectByWrench(w.guid));
         UserBorrow           ub  = new UserBorrow(bhl);
         ub.ShowDialog();
     }
     this.cb_wrench.SelectedIndex = 0;
 }