Apache-poi限制用户仅选择下拉列表的值

Question

如何让用户只选择下拉列表中的一个值，而不是在Excel工作表中输入自己的值。我正在使用Java库Apache-POI

Answer 1

如果您使用HSSFWorkbook，请使用以下

        DVConstraint dvConstraint = 

DVConstraint.createExplicitListConstraint（new String [] {“ABC”}）;         DataValidation dataValidation = new HSSFDataValidation（programList，dvConstraint）;         dataValidation.setSuppressDropDownArrow（真）;         dataValidation.setShowErrorBox（真）;         dataValidation.setShowPromptBox（真）;

    targetSheet.addValidationData(dataValidation);

For XSSFWorkbook, use as below

        DataValidationHelper validationHelper=new XSSFDataValidationHelper(targetSheet);
        DataValidationConstraint constraint =validationHelper.createExplicitListConstraint(new String[]{"ABC"});
        DataValidation dataValidation = validationHelper.createValidation(constraint, programList);
        dataValidation.setSuppressDropDownArrow(true);   
        dataValidation.setShowErrorBox(true);
        dataValidation.setShowPromptBox(true);
        targetSheet.addValidationData(dataValidation);