ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / KnowledgeGraphLayer Class / GetDatastore Method
Example

In This Topic
    GetDatastore Method (KnowledgeGraphLayer)
    In This Topic
    Gets the knowledge graph datastore associated with the layer. This method must be called on the MCT. Use QueuedTask.Run.
    Syntax
    public KnowledgeGraph GetDatastore()
    Public Function GetDatastore() As KnowledgeGraph

    Return Value

    The knowledge graph datastore associated with the layer. Returns null if the KnowledgeGraph layer is empty.
    Exceptions
    ExceptionDescription
    This method or property must be called within the lambda passed to QueuedTask.Run.
    Example
    Getting a Connection from a KnowledgeGraphLayer
    var kgLayer = MapView.Active.Map.GetLayersAsFlattenedList()
            .OfType<KnowledgeGraphLayer>().FirstOrDefault();
    
          
    QueuedTask.Run(() =>
    {
      // use the layer directly
      var datastore = kgLayer.GetDatastore();
    
      // or you can use any of the sub items since
      //KnowledgeGraphLayer is a composite layer - get the first 
      // child feature layer or standalone table
      var featlayer = kgLayer?.GetLayersAsFlattenedList()?
                      .OfType<FeatureLayer>()?.FirstOrDefault();
      KnowledgeGraph kg = null;
      if (featlayer != null)
      {
        using (var fc = featlayer.GetFeatureClass())
          kg = fc.GetDatastore() as KnowledgeGraph;
        //TODO use KnowledgeGraph
      }
      else
      {
        //try standalone table
        var stbl = kgLayer?.GetStandaloneTablesAsFlattenedList()?
                        .FirstOrDefault();
        if (stbl != null)
        {
          using (var tbl = stbl.GetTable())
            kg = tbl.GetDatastore() as KnowledgeGraph;
          //TODO use KnowledgeGraph
        }
      }
    });
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.3 or higher.
    See Also