# Package org.apache.tapestry5.corelib.data

A set of enums used by Tapestry and also useful in custom Tapestry components and services.

- Enum Summary
  Enum | Description
  --- | ---
  BlankOption | Used with the `Select` component to control whether an initial blank option is supplied.
  GridPagerPosition | Used by the `Grid` component to control where the pager portion of the Grid should be displayed.
  InsertPosition |
  SecureOption | Possible values of the "secure" parameter for components that use a `SelectModel` (such as `Select`), to control whether the submitted value must be one of the values in the SelectModel.