Lists data validation types.
Namespace: DevExpress.Spreadsheet
Assembly: DevExpress.Spreadsheet.v19.1.Core.dll
| Name | Description |
|---|---|
| AnyValue | Any value satisfies validation criteria, equivalent to no validation. |
| Custom | Data is validated using an arbitrary formula. |
| Date | Checks for date values satisfying the given condition. |
| Decimal | Checks for decimal values satisfying the given condition. |
| List | Checks whether a value matches a specified list of values. The maximum length of a list is 255 characters. |
| TextLength | Checks for text values whose length satisfies the given condition. |
| Time | Checks for time values satisfying the given condition. |
| WholeNumber | Checks for whole numeric values satisfying given conditions. |
Use the DataValidationCollection.Add method to create a data validation of the required type. The DataValidation.ValidationType property obtains the type of the data validation. This property is read-only, because the data validation type is specified when the data validation entry is created, and cannot be changed.
A complete sample project is available at https://github.com/DevExpress-Examples/winforms-spreadsheetcontrol-api-part-3-t231273
workbook.LoadDocument("Documents\\DataValidation.xlsx");
Worksheet worksheet = workbook.Worksheets[0];
// Restrict data entry to a number within limits.
DataValidation validation = worksheet.DataValidations.Add(worksheet["F4:F11"], DataValidationType.Decimal, DataValidationOperator.Between, 10, 40);
// Change the validation operator and criteria.
// Range F4:F11 should contain numbers greater than or equal 20.
validation.Operator = DataValidationOperator.GreaterThanOrEqual;
validation.Criteria = 20;
validation.Criteria2 = ValueObject.Empty;
// Highlight data validation ranges.
int[] MyColorScheme = new int[] { 0xFFC4C4, 0xFFD9D9, 0xFFF6F6, 0xFFECEC, 0xE9D3D3 };
for (int i = 0; i < worksheet.DataValidations.Count; i++)
{
worksheet.DataValidations[i].Range.FillColor = Color.FromArgb(MyColorScheme[i]);
}