Creates the dictionary of named object types and their corresponding objectIDs.
Return Value
Dictionary of named object types and their corresponding objectIDs.
Get and Set a KG Layer IDSet
var kg_layer = MapView.Active.Map.GetLayersAsFlattenedList()
.OfType<KnowledgeGraphLayer>().FirstOrDefault();
if (kg_layer == null)
return;
QueuedTask.Run(() =>
{
//Get the existing kg layer id set and convert to a dictionary
var layer_id_set = kg_layer.GetIDSet();
var dict = layer_id_set.ToOIDDictionary();//Empty list means all records
//Create an id set from a dictionary
var dict2 = new Dictionary<string, List<long>>();
dict2.Add("Enity_Or_Relate_Type_Name1", null);//Null means all records
dict2.Add("Enity_Or_Relate_Type_Name2", new List<long>());//Empty list means all records
dict2.Add("Enity_Or_Relate_Type_Name3",
new List<long>() { 3, 5, 9, 101, 34 });//Explicit list of ids
//dict2.Add("Enity_Or_Relate_Type_Name4",
// new List<long>() { etc, etc });
//Create the id set
var idset = KnowledgeGraphLayerIDSet.FromDictionary(kg, dict2);
//Can be used to create a layer, link chart, append to link chart, etc...
});
Get the ID Set of a KG layer
QueuedTask.Run(() =>
{
var idSet = kgLayer.GetIDSet();
// is the set empty?
var isEmpty = idSet.IsEmpty;
// get the count of named object types
var countNamedObjects = idSet.NamedObjectTypeCount;
// does it contain the entity "Species";
var contains = idSet.Contains("Species");
// get the idSet as a dictionary of namedObjectType and oids
var oidDict = idSet.ToOIDDictionary();
var speciesOIDs = oidDict["Species"];
// alternatively get the idSet as a dictionary of
// namedObjectTypes and uuids
var uuidDict = idSet.ToUIDDictionary();
var speciesUuids = uuidDict["Species"];
});
Target Platforms: Windows 11, Windows 10
ArcGIS Pro version: 3.3 or higher.