ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Data.Topology Namespace / TopologyError Class / OriginClassName Property
Example Version

OriginClassName Property (TopologyError)
Gets the feature class name of the origin feature that created the topology error. If it is not applicable, an empty string is returned.
Syntax
public string OriginClassName {get;}
Example
GetTopologyErrors
// Get all the errors and exceptions currently associated with the topology.

IReadOnlyList<TopologyError> allErrorsAndExceptions = topology.GetErrors(new ErrorDescription(topology.GetExtent()));
Console.WriteLine($"errors and exceptions count => {allErrorsAndExceptions.Count}");
        
Console.WriteLine("OriginClassName \t OriginObjectID \t DestinationClassName \t DestinationObjectID \t RuleType \t IsException \t Shape type \t Shape width & height \t  Rule ID \t");

foreach (TopologyError error in allErrorsAndExceptions)
{
  Console.WriteLine($"'{error.OriginClassName}' \t {error.OriginObjectID} \t '{error.DestinationClassName}' \t " +
                    $"{error.DestinationObjectID} \t {error.RuleType} \t {error.IsException} \t {error.Shape.GeometryType} \t " +
                    $"{error.Shape.Extent.Width},{error.Shape.Extent.Height} \t {error.RuleID}");
}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also