ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Data.UtilityNetwork Namespace / Association Class
Members Example Version

Association Class
Represents a connectivity (spatial and non-spatial), containment, or structural attachment association.
Object Model
Association ClassElement ClassElement Class
Syntax
public class Association : System.IEquatable<Association>  
Remarks
Association objects are not reflected in the topological index if they have not yet been validated with UtilityNetwork.ValidateNetworkTopology.
Example
Get traverse associations result from downward traversal
public static void GetTraverseAssociationsResultFromDownwardTraversal(UtilityNetwork utilityNetwork, IReadOnlyList<Element> startingElements)
{
  // Set downward traversal with maximum depth
  TraverseAssociationsDescription traverseAssociationsDescription = new TraverseAssociationsDescription(TraversalDirection.Descending);

  // Get traverse associations result from the staring element up to maximum depth
  TraverseAssociationsResult traverseAssociationsResult = utilityNetwork.TraverseAssociations(startingElements, traverseAssociationsDescription);

  // Get associations participated in traversal
  IReadOnlyList<Association> associations = traverseAssociationsResult.Associations;
}
Get traverse associations result from upward traversal with depth limit
public static void GetTraverseAssociationsResultFromUpwardTraversalWithDepthLimit(UtilityNetwork utilityNetwork, IReadOnlyList<Element> startingElements)
{
  // List of fields whose values will be fetched as name-values pairs during association traversal operation
  List<string> additionalFieldsToFetch = new List<string> { "ObjectId", "AssetName", "AssetGroup", "AssetType" };

  // Set downward traversal with maximum depth level of 3 
  TraverseAssociationsDescription traverseAssociationsDescription = new TraverseAssociationsDescription(TraversalDirection.Ascending, 3)
  {
    AdditionalFields = additionalFieldsToFetch
  };

  // Get traverse associations result from the staring element up to depth level 3
  TraverseAssociationsResult traverseAssociationsResult = utilityNetwork.TraverseAssociations(startingElements, traverseAssociationsDescription);

  // List of associations participated in traversal
  IReadOnlyList<Association> associations = traverseAssociationsResult.Associations;

  // KeyValue mapping between involved elements and their field name-values 
  //At 2.x - IReadOnlyDictionary<Element, IReadOnlyList<AssociationElementFieldValue>> associationElementValuePairs = traverseAssociationsResult.AdditionalFieldValues;
  IReadOnlyDictionary<Element, IReadOnlyList<FieldValue>> associationElementValuePairs =
    traverseAssociationsResult.AdditionalFieldValues;

  foreach (KeyValuePair<Element, IReadOnlyList<FieldValue>> keyValuePair in associationElementValuePairs)
  {
    // Element 
    Element element = keyValuePair.Key;

    // List of field names and their values 
    //At 2.x - IReadOnlyList<AssociationElementFieldValue> elementFieldValues = keyValuePair.Value;
    IReadOnlyList<FieldValue> elementFieldValues = keyValuePair.Value;
  }
}
Inheritance Hierarchy

System.Object
   ArcGIS.Core.Data.UtilityNetwork.Association
      ArcGIS.Core.Data.UtilityNetwork.AssociationFeature

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also