ArcGIS Pro 2.7 API Reference Guide
Filter Class
Members 

ArcGIS.Core.Data.UtilityNetwork.Trace Namespace : Filter Class
The Filter class encapsulates all of the criteria that determine filters in a utility network trace.
Object Model
Filter ClassCondition ClassNetworkAttribute ClassNearestNeighbor Class
Syntax
public sealed class Filter 
Public NotInheritable Class Filter 
Remarks
Filters are a mechanism to stop tracing when returning results. They do not stop traversability to the controller. For example, let's assume you want to write a trace to find the next upstream protective device in an electrical network. You would do this by creating a CategoryComparison object to stop when a feature is found that is assigned the "Protective Device" category. If you entered this CategoryComparison object into Traversability.Barriers then the trace would be unable to find a subnetwork controller to determine which direction was upstream. The correct way to implement this is by entering this CategoryComparison object into Barriers property of the Filter object.
Inheritance Hierarchy

System.Object
   ArcGIS.Core.Data.UtilityNetwork.Trace.Filter

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

Filter Members
ArcGIS.Core.Data.UtilityNetwork.Trace Namespace