ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Data.NetworkDiagrams Namespace / DiagramElementQueryByExtent Class / AddContents Property
Example Version

AddContents Property (DiagramElementQueryByExtent)
Indicates whether or not the "searching" envelope must be enlarged to include the extent of any containers that are partially within the specified envelope. False to return the diagram features which strictly intersect the specified envelope(default). True to enlarge the "searching" envelope so it includes the extent of any containers that are partially within the specified envelope.
Syntax
public bool AddContents {get; set;}
Example
Get Diagram Elements
public void GetDiagramElements(MapView mapView, NetworkDiagram networkDiagram)
{
  // Create a DiagramElementQueryByExtent to retrieve diagram element junctions whose extent
  // intersects the active map extent

  DiagramElementQueryByExtent elementQuery = new DiagramElementQueryByExtent();
  elementQuery.ExtentOfInterest = MapView.Active.Extent;
  elementQuery.AddContents = false;
  elementQuery.QueryDiagramJunctionElement = true;
  elementQuery.QueryDiagramEdgeElement = false;
  elementQuery.QueryDiagramContainerElement = false;

  // Use this DiagramElementQueryByExtent as an argument to the QueryDiagramElements method
  DiagramElementQueryResult result = networkDiagram.QueryDiagramElements(elementQuery);

  // get the container, junction, edge elements
  //    in this case result.DiagramJunctionElements and result.DiagramEdgeElements will be empty 
  //    since elementQuery.QueryDiagramEdgeElement and elementQuery.QueryDiagramContainerElement are set to false
  IReadOnlyList<DiagramContainerElement> containerElements = result.DiagramContainerElements;

  IReadOnlyList<DiagramJunctionElement> junctionElements = result.DiagramJunctionElements;

  IReadOnlyList<DiagramEdgeElement> edgeElements = result.DiagramEdgeElements;
}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also