ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Data.Topology Namespace / TopologyRule Class / RuleType Property
Example

In This Topic
    RuleType Property (TopologyRule)
    In This Topic
    Gets the type of this topology rule.
    Syntax
    public TopologyRuleType RuleType {get;}
    Public ReadOnly Property RuleType As TopologyRuleType
    Example
    GetTopologyRules
    using (TopologyDefinition topologyDefinition = topology.GetDefinition())
    {
      IReadOnlyList<TopologyRule> rules = topologyDefinition.GetRules();
    
      Console.WriteLine($"There are {rules.Count} topology rules defined for the topology:");
      Console.WriteLine("ID \t Origin Class \t Origin Subtype \t Destination Class \t Destination Subtype \t Rule Type");
    
      foreach (TopologyRule rule in rules)
      {
        Console.Write($"{rule.ID}");
    
        Console.Write(!String.IsNullOrEmpty(rule.OriginClass) ? $"\t{rule.OriginClass}" : "\t\"\"");
    
        Console.Write(rule.OriginSubtype != null ? $"\t{rule.OriginSubtype.GetName()}" : "\t\"\"");
    
        Console.Write(!String.IsNullOrEmpty(rule.DestinationClass) ? $"\t{rule.DestinationClass}" : "\t\"\"");
    
        Console.Write(rule.DestinationSubtype != null ? $"\t{rule.DestinationSubtype.GetName()}" : "\t\"\"");
    
        Console.Write($"\t{rule.RuleType}");
    
        Console.WriteLine();
      }
    }
    
    MarkAndUnmarkAsErrors
    // Get all the errors due to features violating the "PointProperlyInsideArea" topology rule.
    
    using (TopologyDefinition topologyDefinition = topology.GetDefinition())
    {
      TopologyRule pointProperlyInsideAreaRule = topologyDefinition.GetRules().First(rule => rule.RuleType == TopologyRuleType.PointProperlyInsideArea);
    
      ErrorDescription errorDescription = new ErrorDescription(topology.GetExtent())
      {
        TopologyRule = pointProperlyInsideAreaRule
      };
    
      IReadOnlyList<TopologyError> errorsDueToViolatingPointProperlyInsideAreaRule = topology.GetErrors(errorDescription);
      Console.WriteLine($"There are {errorsDueToViolatingPointProperlyInsideAreaRule.Count} feature violating the 'PointProperlyInsideArea' topology rule.");
    
      // Mark all errors from features violating the 'PointProperlyInsideArea' topology rule as exceptions.
    
      foreach (TopologyError error in errorsDueToViolatingPointProperlyInsideAreaRule)
      {
        topology.MarkAsException(error);
      }
    
      // Now verify all the errors from features violating the 'PointProperlyInsideArea' topology rule have indeed been
      // marked as exceptions.
      //
      // By default, ErrorDescription is initialized to ErrorType.ErrorAndException.  Here we want ErrorType.ErrorOnly.
    
      errorDescription = new ErrorDescription(topology.GetExtent())
      {
        ErrorType = ErrorType.ErrorOnly,
        TopologyRule = pointProperlyInsideAreaRule
      };
    
      IReadOnlyList<TopologyError> errorsAfterMarkedAsExceptions = topology.GetErrors(errorDescription);
      Console.WriteLine($"There are {errorsAfterMarkedAsExceptions.Count} feature violating the 'PointProperlyInsideArea' topology rule after all the errors have been marked as exceptions.");
    
      // Finally, reset all the exceptions as errors by unmarking them as exceptions.
    
      foreach (TopologyError error in errorsDueToViolatingPointProperlyInsideAreaRule)
      {
        topology.UnmarkAsException(error);
      }
    
      IReadOnlyList<TopologyError> errorsAfterUnmarkedAsExceptions = topology.GetErrors(errorDescription);
      Console.WriteLine($"There are {errorsAfterUnmarkedAsExceptions.Count} feature violating the 'PointProperlyInsideArea' topology rule after all the exceptions have been reset as errors.");
    }
    
    Requirements

    Target Platforms: Windows 11, Windows 10, Windows 8.1

    See Also