Namespace OfficeOpenXml.DataValidation

Classes

ExcelDataValidation

Abstract base class for all Excel datavalidations. Contains functionlity which is common for all these different validation types.

ExcelDataValidationCollection

Collection of ExcelDataValidation. This class is providing the API for EPPlus data validation.

The public methods of this class (Add[...]Validation) will create a datavalidation entry in the worksheet. When this validation has been created changes to the properties will affect the workbook immediately.

Each type of validation has either a formula or a typed value/values, except for custom validation which has a formula only.

// Add a date time validation
var validation = worksheet.DataValidation.AddDateTimeValidation("A1");
// set validation properties
validation.ShowErrorMessage = true;
validation.ErrorTitle = "An invalid date was entered";
validation.Error = "The date must be between 2011-01-31 and 2011-12-31";
validation.Prompt = "Enter date here";
validation.Formula.Value = DateTime.Parse("2011-01-01");
validation.Formula2.Value = DateTime.Parse("2011-12-31");
validation.Operator = ExcelDataValidationOperator.between;