Possible enumeration values:

NameValueDescription
Name

1

Sort by name ascending

NameDesc

-1

Sort by name descending

Description

2

Sort by description ascending

DescriptionDesc

-2

Sort by description descending

Number

3

Sort by number ascending

NumberDesc

-3

Sort by number descending

CreateDate

4

Sort by create date ascending

CreateDateDesc

-4

Sort by create date descending

LastUpdateDate

5

Sort by last update date ascending

LastUpdateDateDesc

-5

Sort by last update date descending