php - Laravel excel 库（Maatwebsite）：如何在导出中创建下拉列表

Question

我正在创建一个应包含下拉列表的 excel 模板。我看到它可能与 phpexcel 库（PHPExcel Multiple Dropdown list thatdependent）。我想知道是否可以使用 maatwebsite 提供的 laravel-excel 库来完成。我需要下拉、NamedRange、datavalidation、setFormula 等函数的语法。

Answer 1

对于 maatwebite 版本 V.3.1，使用以下代码

<?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 . '"');
              
            }
        ];
    }
}

Answer 2

  public function index() {
        \Excel::create('file', function($excel) {
            require_once("/apppath//vendor/phpoffice/phpexcel/Classes/PHPExcel/NamedRange.php");
            require_once("/apppath/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DataValidation.php");

            $excel->sheet('New sheet', function($sheet) {

                $sheet->SetCellValue("A1", "UK");
                $sheet->SetCellValue("A2", "USA");

                $sheet->_parent->addNamedRange(
                        new \PHPExcel_NamedRange(
                        'countries', $sheet, 'A1:A2'
                        )
                );


                $sheet->SetCellValue("B1", "London");
                $sheet->SetCellValue("B2", "Birmingham");
                $sheet->SetCellValue("B3", "Leeds");
                $sheet->_parent->addNamedRange(
                        new \PHPExcel_NamedRange(
                        'UK', $sheet, 'B1:B3'
                        )
                );

                $sheet->SetCellValue("C1", "Atlanta");
                $sheet->SetCellValue("C2", "New York");
                $sheet->SetCellValue("C3", "Los Angeles");
                $sheet->_parent->addNamedRange(
                        new \PHPExcel_NamedRange(
                        'USA', $sheet, 'C1:C3'
                        )
                );
                $objValidation = $sheet->getCell('D1')->getDataValidation();
                $objValidation->setType(\PHPExcel_Cell_DataValidation::TYPE_LIST);
                $objValidation->setErrorStyle(\PHPExcel_Cell_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('countries'); //note this!
            });
        })->download("xlsx");
        return view('home');
    }

Answer 3

只想分享有关=INDIRECT 函数下拉列表的namedRange，当您尝试将它与registerEvents 一起使用时，这是我的示例代码

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

在 namedRange 中调用单元格时使用 $ 以准确影响您的单元格。我希望它会帮助你们中的一些人。参考：https ://phpspreadsheet.readthedocs.io/en/latest/topics/defined-names/#named-ranges

这里是 INDIRECT excel 函数参考： https ://www.exceldemy.com/excel-data-validation-based-on-another-cell/