isEmptyCellAllowed property

bool isEmptyCellAllowed
getter/setter pair

Gets or sets the isEmptyCellAllowed.

//Creating one worksheet and accessing the first sheet
final Workbook workbook = Workbook(1);
final Worksheet sheet = workbook.worksheets[0];

//Accessing the first cell in worksheet and applying the textLength with promptBox property
final DataValidation textLengthValidation =
    sheet.getRangeByName('A1').dataValidation;

//sets the allowType
textLengthValidation.allowType = ExcelDataValidationType.textLength;

//sets the comparisonOperator
textLengthValidation.comparisonOperator =
    ExcelDataValidationComparisonOperator.between;

//sets the firstFormula
textLengthValidation.firstFormula = '1';

//sets the second Formula
textLengthValidation.secondFormula = '5';


//sets the promptBoxVPosition
textLengthValidation.promptBoxVPosition = 50;

//sets the promptBoxHPosition
textLengthValidation.promptBoxHPosition = 50;

//sets the isPromptBoxPositionFixed
textLengthValidation.isPromptBoxPositionFixed = true;

//sets the isSuppressDropDownArrow
textLengthValidation.isSuppressDropDownArrow = true;

//sets the isEmptyCellAllowed
textLengthValidation.isEmptyCellAllowed = false;


//Save and dispose Workbook
final List<int> bytes = workbook.saveAsStream();
saveAsExcel(bytes, 'ExceltextLengthValidationpromptBox.xlsx');
workbook.dispose();

Implementation

late bool isEmptyCellAllowed;