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我正在使用PHPExcel進行xls創建。我如何鏈接一個表單列到一個下拉單元格。我在xls中創建了一個下拉列表，但是如何獲取表格列，如下拉列表中的整個列。 ！ 在Excel中，當我的片列鏈接到任何細胞中的製備式這樣PHPExcel如何使用setFormula1將表單列鏈接到單元格（）
= DropdownSheet $ A我已經手動完成此：$ A
DropdonSheet是一個表名稱一個是我連接
列我使用PHPExcel正是我在Excel DropdonSheet所做建立一個表，當我在寫PHPExcel這個公式來填充下拉
$objValidation->setFormula1("=DropdownSheet!$A:$A");
它不起作用給我一個錯誤。什麼我做錯了任何一個可以請指導我這裏是我的整個代碼
$objPHPExcel = new PHPExcel();
// Create a first sheet, representing sales data
$objPHPExcel->setActiveSheetIndex(0);
$objPHPExcel->getActiveSheet()->setCellValue('A1', 'Something');
$objPHPExcel->getActiveSheet()->setCellValue('A2', 'Something');
$objPHPExcel->getActiveSheet()->setCellValue('A3', 'Something');
$objPHPExcel->getActiveSheet()->setCellValue('A4', 'Something');
$objPHPExcel->getActiveSheet()->setCellValue('A5', 'Something');
$objPHPExcel->getActiveSheet()->setCellValue('A6', 'Something');
$objPHPExcel->getActiveSheet()->setCellValue('A7', 'Something');
$objPHPExcel->getActiveSheet()->setCellValue('A8', 'Something');
$objPHPExcel->getActiveSheet()->setCellValue('A9', 'Something');
// Rename sheet
$objPHPExcel->getActiveSheet()->setTitle('DropdownSheet');
// Create a new worksheet, after the default sheet
$objPHPExcel->createSheet();
// Add some data to the second sheet, resembling some different data types
$objPHPExcel->setActiveSheetIndex(1);
$objPHPExcel->getActiveSheet()->setCellValue('A1', 'More data');
$objValidation = $objPHPExcel->getActiveSheet()->getCell("B1")->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.');
$objValidation->setFormula1("=DropdownSheet!$A:$A");
// Rename 2nd sheet
$objPHPExcel->getActiveSheet()->setTitle('Second sheet');