# ValidationType ```csharp public enum ValidationType ``` Namespace `SharpCell` · package `SharpCell` What a data validation rule lets a cell hold, as Excel's Data Validation dialog names it under Allow. ## Values | Name | Value | Description | |---|---|---| | `Any` | 0 | Any value: the rule only shows its input message. | | `WholeNumber` | 1 | A whole number compared with the formulas. | | `Decimal` | 2 | A number compared with the formulas. | | `List` | 3 | One of the items of a list, given as a quoted literal or a range; Excel shows them in a drop-down. | | `Date` | 4 | A date compared with the formulas. | | `Time` | 5 | A time compared with the formulas. | | `TextLength` | 6 | Text whose length is compared with the formulas. | | `Custom` | 7 | Any value for which the formula is true. |