TopologyLayer Class
In This Topic
Represents a topology composite layer.
Object Model
Syntax
Public NotInheritable Class TopologyLayer Inherits CompositeLayer Implements ArcGIS.Desktop.Core.IMetadataInfo, ILayerContainer, IMetadataSource, ITopologyLayerContainer, System.ComponentModel.INotifyPropertyChanged
public sealed class TopologyLayer : CompositeLayer, ArcGIS.Desktop.Core.IMetadataInfo, ILayerContainer, IMetadataSource, ITopologyLayerContainer, System.ComponentModel.INotifyPropertyChanged
Remarks
The topology layer is a composite layer that is a representation of the topology dataset. The topology layer contains a dirty area and error sublayers. See ArcGIS.Core.CIM.CIMTopologyLayer.
Example
Create TopologyLayer with an Uri pointing to a Topology dataset
{
var path = @"D:\Data\CommunitySamplesData\Topology\GrandTeton.gdb\BackCountry\Backcountry_Topology";
var lcp = new TopologyLayerCreationParams(new Uri(path));
lcp.Name = "GrandTeton_Backcountry";
lcp.AddAssociatedLayers = true;
//Note: Needs QueuedTask to run
var topoLayer = LayerFactory.Instance.CreateLayer<ArcGIS.Desktop.Mapping.TopologyLayer>(lcp, MapView.Active.Map);
}
Create Topology Layer using Topology dataset
{
//Get the Topology of another Topology layer
var existingTopology = MapView.Active.Map.GetLayersAsFlattenedList().OfType<TopologyLayer>().FirstOrDefault();
if (existingTopology != null)
{
var topology = existingTopology.GetTopology();
//Configure the settings for a new Catalog layer using the CatalogDataset of an existing layer
var topologyLyrParams = new TopologyLayerCreationParams(topology);
topologyLyrParams.Name = "NewTopologyLayerFromAnotherTopologyLayer";
topologyLyrParams.AddAssociatedLayers = true;
//Note: Needs QueuedTask to run
LayerFactory.Instance.CreateLayer<TopologyLayer>(topologyLyrParams, MapView.Active.Map);
}
}
Inheritance Hierarchy
System.Object
ArcGIS.Desktop.Framework.Contracts.PropertyChangedBase
ArcGIS.Desktop.Mapping.MapMember
ArcGIS.Desktop.Mapping.Layer
ArcGIS.Desktop.Mapping.CompositeLayer
ArcGIS.Desktop.Mapping.TopologyLayer
Requirements
Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)
ArcGIS Pro version: 3.1 or higher.
See Also