GetAvailableTopologiesAsync Method

In This Topic

Gets the list of available topologies for the map. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

Visual Basic (Declaration)
C#

Public Shared Function GetAvailableTopologiesAsync( _
   ByVal map As Map _
) As Task(Of IReadOnlyList(Of TopologyProperties))

public static Task<IReadOnlyList<TopologyProperties>> GetAvailableTopologiesAsync( 
   Map map
)

Parameters

map: The map to retrieve the topology properties for.

Return Value

The list of topology properties for the map.

Exceptions

Exception	Description
System.ArgumentNullException	Map is null
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.

Remarks

Topologies are only supported if the map is a 2D non-stereo map. If the map contains geodatabase topology layers then geodatabase topology properties are also returned.

Example

Get List of available topologies in the map

// Retrieves and processes the list of available topologies in the active map.
await QueuedTask.Run(async () =>
{
  var map = MapView.Active.Map;
  //Get a list of all the available topologies for the map
  var availableTopologies = await map.GetAvailableTopologiesAsync();

  var gdbTopologies = availableTopologies.OfType<GeodatabaseTopologyProperties>();
  var mapTopologies = availableTopologies.OfType<MapTopologyProperties>();
});

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.1 or higher.

Reference

MappingExtensions Class
MappingExtensions Members

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