Validation Class

public class Validation

Public Class Validation

public ref class Validation

type Validation =  class end

[C#]
Workbook workbook = new Workbook();
ValidationCollection validations = workbook.Worksheets[0].Validations;
CellArea area = CellArea.CreateCellArea(0, 0, 1, 1);
Validation validation = validations[validations.Add(area)];
validation.Type = Aspose.Cells.ValidationType.WholeNumber;
validation.Operator = OperatorType.Between;
validation.Formula1 = "3";
validation.Formula2 = "1234";

[Visual Basic]
Dim workbook as Workbook = new Workbook()
Dim validations as ValidationCollection  = workbook.Worksheets(0).Validations
Dim area as CellArea = CellArea.CreateCellArea(0, 0, 1, 1);
Dim validation as Validation = validations(validations.Add(area))
validation.Type = ValidationType.WholeNumber
validation.Operator = OperatorType.Between
validation.Formula1 = "3"
validation.Formula2 = "1234"