public function readCarPreemptionSelectlistForDisplayInGrid($redlabelid)
 {
     if (!$this->hasPermission($this->menuPermissionName)) {
         return view($this->viewPermissiondeniedName);
     }
     if (Auth::user()->isadmin) {
         $carpreemptions = CarPreemption::whereHas('redlabelhistories', function ($q) use($redlabelid) {
             $q->where('redlabelid', $redlabelid);
         })->orderBy('bookno', 'asc')->orderBy('no', 'asc')->get(['id', 'bookno', 'no', 'buyercustomerid', 'salesmanemployeeid']);
     } else {
         $carpreemptions = CarPreemption::where('provinceid', Auth::user()->provinceid)->whereHas('redlabelhistories', function ($q) use($redlabelid) {
             $q->where('redlabelid', $redlabelid);
         })->orderBy('bookno', 'asc')->orderBy('no', 'asc')->get(['id', 'bookno', 'no', 'buyercustomerid', 'salesmanemployeeid']);
     }
     $carpreemptionselectlist = array();
     array_push($carpreemptionselectlist, ':เลือกการจอง');
     foreach ($carpreemptions as $item) {
         $buyercustomer = Customer::find($item->buyercustomerid);
         $buyercustomername = $buyercustomer->title . ' ' . $buyercustomer->firstname . ' ' . $buyercustomer->lastname;
         $salesmanemployee = Employee::find($item->salesmanemployeeid);
         $salesmanemployeename = $salesmanemployee->title . ' ' . $salesmanemployee->firstname . ' ' . $salesmanemployee->lastname;
         array_push($carpreemptionselectlist, $item->id . ':' . str_pad($item->bookno . '/' . $item->no, strlen($item->bookno . '/' . $item->no) + 15, " ") . str_pad($buyercustomername, strlen($buyercustomername) + 15, " ") . $salesmanemployeename);
     }
     return ['carpreemptionselectlist' => implode(";", $carpreemptionselectlist)];
 }