SelectRootNodes Method

In This Topic

Sets AND selects the root nodes for the link chart map view. Use an empty set of rootNodes to clear the existing set of root nodes and the selection. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public static SelectionSet SelectRootNodes( 
   MapView mapView,
   MapMemberIDSet rootNodes
)

Public Shared Function SelectRootNodes( _
   ByVal mapView As MapView, _
   ByVal rootNodes As MapMemberIDSet _
) As SelectionSet

Parameters

mapView
rootNodes: The set of root nodes. If the set is empty, then the root nodes and the selection are cleared.

Return Value

The set of root nodes as a SelectionSet

Exceptions

Exception	Description
System.ArgumentNullException	Map cannot be null.
System.ArgumentNullException	rootNodes cannot be null.
System.ArgumentException	Map is not a link chart.
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.

Example

Define and select a set of records as Root Nodes

await QueuedTask.Run(() =>
{
  var dict = new Dictionary<MapMember, List<long>>();
  dict.Add(entityLayer, oids);
  dict.Add(entityLayer2, oids2);
  MapMemberIDSet mmIDSet = MapMemberIDSet.FromDictionary(dict);

  MapView.Active.SelectRootNodes(mmIDSet);
});

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.4 or higher.

Reference

KnowledgeGraphMappingExtensions Class
KnowledgeGraphMappingExtensions Members

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