Crystallographic Information Framework

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DDL dictionary version 1.4.1

_list_mandatory

Name:
'_list_mandatory'

Definition:

   Signals whether the defined item must be present in the loop
   structure containing other items of the designated _category.
   This property is transferrable to another data item which is
   identified by _related_item and has _related_function set as
   'alternate'.


The data value must be one of the following:


yes
required item in this category of looped list

no
optional item in this category of looped list

Enumeration default: no

Type: char

Category: list