Learning > presentation > content > Related Properties Specification

RelatedProperties Content Modifier

Based on RelatedPropertiesSpecification interface.

This content modifier allows including related instance properties into the selected instance content.

Attributes

Name	Required?	Type	Default	Meaning
`propertiesSource`	Yes	`RelationshipPathSpecification`		Specification of the relationship path to follow when looking for related properties.
`handleTargetClassPolymorphically`	No	`boolean`	`false`	Should the target class specified in `propertiesSource` be handled polymorphically. This means properties of not only the target class, but also all its subclasses are loaded.
`relationshipMeaning`	No	`"SameInstance" \| "RelatedInstance"`	`"RelatedInstance"`	Meaning of the relationship. See below for more details.
`properties`	No	`Array<string \| PropertySpecification> \| "_none_" \| "*"`	All properties in target class	List of names or definitions of related class properties that should be included in the content. `_none_` means none of the properties should be picked up. `*` means all properties should be picked up and is also allowed to be specified as a member item - see examples section.
`autoExpand`	No	`boolean`	`false`	Should field containing related properties be automatically expanded. Only takes effect when related properties are displayed as a struct.
`skipIfDuplicate`	No	`boolean`	`false`	Should this related properties specification be ignored if it duplicates another higher priority specification for the same relationship.

Relationship Meaning Attribute

The attribute tells the presentation rules engine what the related properties mean to the instance whose properties are displayed. There are two possible options:

RelatedInstance means that the properties should be distinguished from properties of the primary instance and shown separately to make it clear they belong to another instance.
SameInstance means that the properties should be displayed as if they belonged to the primary instance.

In general, when properties are displayed in a property grid, this attribute provides a way to control how properties are categorized. See property categorization page page for more details.

Examples

Pick "MyProperty1" and "MyProperty2" properties from all related aspects that have them:

{
  "propertiesSource": {
    "relationship": {"schemaName": "BisCore", "className": "ElementOwnsUniqueAspect"},
    "direction": "Forward",
    "targetClass": {"schemaName": "BisCore", "className": "ElementUniqueAspect"}
  },
  "handleTargetClassPolymorphically": true,
  "relationshipMeaning": "SameInstance",
  "properties": ["MyProperty1", {"name": "MyProperty2"}]
}

Pick all properties from related model and override label of "UserLabel" property:

{
  "propertiesSource": {
    "relationship": {"schemaName": "BisCore", "className": "ModelContainsElements"},
    "direction": "Backward",
    "targetClass": {"schemaName": "BisCore", "className": "Model"}
  },
  "relationshipMeaning": "RelatedInstance",
  "properties": ["*", {
    "name": "UserLabel",
    "labelOverride": "My Custom Related Property Label"
  }]
}

Last Updated: 29 November, 2022