Trigger 

**>Is Present: Data is present (response only) **>Is
Required:Data must be present (request only, but already handled somewhere else)
**>WhenSmall:Only return if small. The size can be defined using the Size
element of the collection

Attribute Information

Used By

Attribute Group DataPresenceGroup

Source 

<xs:attribute name="Trigger" type="TriggerCodeType" use="optional">
  <xs:annotation>
    <xs:documentation>**>Is Present: Data is present (response only) **>Is Required:Data must be present (request only, but already handled somewhere else) **>WhenSmall:Only return if small. The size can be defined using the Size element of the collection</xs:documentation>
  </xs:annotation>
</xs:attribute>

Sample