NullableDateTime

Overview

Abstract data type

A date time, or a null value. NullableDateTime is abstract and has two concrete subtypes:

• a DateTime is an actual value for a date time;

• a NullDateTime is a null value that explicitly indicates the absence of a date time.

Subtypes

• DateTime

• NullDateTime

Implementation in Proteus Schema

NullableDateTime is only used as the type of the ExportDateTime attribute of DexpiModel. For this attribute, special rules apply; see Proteus Schema implementation of ExportDateTime.