Hierarchical select lists - Intergraph Smart API Manager - 2020 (4.0) - Help

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Smart API Manager Version
4.0

Smart APIs support the concept of hierarchical select lists, meaning that the value selected for one property determines what values are available for another property that is bound to a different (but related) select list.

The SampleService Smart API demonstrates this concept. There are two select lists implemented:

  • Insulation Purpose (InsulPurpose)

  • Insulation Spec (InsulSpec)

Insulation Purpose contains two items, as shown directly above:

  • C

  • H

Insulation Spec is related to Insulation Purpose. In this case, Insulation Purpose is the Parent for the Insulation Spec list. You can query SelectLists for Parent and/or Descendant to discover hierarchical relationships for select lists:

GET https://sam.spclouddave.com/SampleService/Sppid/V2/SelectLists?$expand=Parent,Descendant

{

"ConcurrencyToken": "5247733223689787914",

"Id": "InsulPurpose",

"Name": "Insulation Purpose",

"HierarchyName": "Insulation",

"Parent": null,

"Descendant": {

"ConcurrencyToken": "5247733223689787914",

"Id": "InsulSpec",

"Name": "Insulation Spec",

"HierarchyName": "Insulation"

}

},

{

"ConcurrencyToken": "5247733223689787914",

"Id": "InsulSpec",

"Name": "Insulation Spec",

"HierarchyName": "Insulation",

"Parent": {

"ConcurrencyToken": "5247733223689787914",

"Id": "InsulPurpose",

"Name": "Insulation Purpose",

"HierarchyName": "Insulation"

},

"Descendant": null

}

SHARED Tip Each item from the descendant select list is related to an item from its parent select list.