Laravel excel library(Maatwebsite) : How to create a drop down list in exports

Question

I am creating an excel template which should contain a dropdown list. I see its possible with the phpexcel library (PHPExcel Multiple Dropdown list that dependent). I was wondering if it could be done with the laravel-excel library provided by maatwebsite. I need the syntax for functions like dropdown,NamedRange, datavalidation,setFormula, etc.

Answer 1

Just want to share regarding namedRange for =INDIRECT function dropdown list, when you're trying to use it with registerEvents, here's my sample code

AfterSheet::class => function(AfterSheet $event) {
       $event->sheet->getDelegate()->getParent()->addNamedRange(
             new PhpOffice\PhpSpreadsheet\NamedRange(
                'mynamerange',
                $event->sheet->getDelegate(),
               '=$A$1:$A$10')
       );
},

use $ when calling cell in namedRange to take affect on your cell accurately. I hope it'll help some of you. reference: https://phpspreadsheet.readthedocs.io/en/latest/topics/defined-names/#named-ranges

here for INDIRECT excel function reference: https://www.exceldemy.com/excel-data-validation-based-on-another-cell/

Answer 2

for maatwebite version V.3.1 use below code

<?php

namespace App\Exports;

use App\Models\Category;

use Illuminate\Contracts\View\View;
use Maatwebsite\Excel\Concerns\FromView;
use Maatwebsite\Excel\Concerns\WithEvents;
use Maatwebsite\Excel\Concerns\WithTitle;
use Maatwebsite\Excel\Events\AfterSheet;
use PhpOffice\PhpSpreadsheet\Cell\DataValidation;

class BulkUploadProductExport implements FromView, WithEvents , WithTitle
{
  

    public function view(): View
    {
        return view('exports', [
            'categories' => Category::all()
        ]);
    }

    public function title(): string
    {
        return 'bulkupload';
    }

    public function registerEvents(): array
    {

        //$event = $this->getEvent();
        return [
            AfterSheet::class => function (AfterSheet $event) {
               
                /** @var Sheet $sheet */
                $sheet = $event->sheet;

                /**
                 * validation for bulkuploadsheet
                 */

                $sheet->setCellValue('B5', "SELECT ITEM");
                $configs = "DUS800, DUG900+3xRRUS, DUW2100, 2xMU, SIU, DUS800+3xRRUS, DUG900+3xRRUS, DUW2100";
                $objValidation = $sheet->getCell('B5')->getDataValidation();
                $objValidation->setType(DataValidation::TYPE_LIST);
                $objValidation->setErrorStyle(DataValidation::STYLE_INFORMATION);
                $objValidation->setAllowBlank(false);
                $objValidation->setShowInputMessage(true);
                $objValidation->setShowErrorMessage(true);
                $objValidation->setShowDropDown(true);
                $objValidation->setErrorTitle('Input error');
                $objValidation->setError('Value is not in list.');
                $objValidation->setPromptTitle('Pick from list');
                $objValidation->setPrompt('Please pick a value from the drop-down list.');
                $objValidation->setFormula1('"' . $configs . '"');
              
            }
        ];
    }
}