linux-packaging-mono/mcs/class/referencesource/System.ComponentModel.DataAnnotations/DataAnnotations/Schema/DatabaseGeneratedOption.cs

namespace System.ComponentModel.DataAnnotations.Schema {
    /// <summary>
    /// The pattern used to generate values for a property in the database.
    /// </summary>
    public enum DatabaseGeneratedOption {
        /// <summary>
        /// The database does not generate values.
        /// </summary>
        None,

        /// <summary>
        /// The database generates a value when a row is inserted.
        /// </summary>
        Identity,

        /// <summary>
        /// The database generates a value when a row is inserted or updated.
        /// </summary>
        Computed
    }
}