ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Data Namespace / DefinitionRelationshipType Enumeration
Example Example

In This Topic
    DefinitionRelationshipType Enumeration
    In This Topic
    Specifies the relationship between dataset definitions.
    Syntax
    public enum DefinitionRelationshipType : System.Enum, System.IComparable, System.IConvertible, System.IFormattable  
    Public Enum DefinitionRelationshipType 
       Inherits System.Enum
       Implements System.IComparable, System.IConvertible, System.IFormattable 
    Members
    MemberDescription
    DatasetInFeatureDatasetThe Dataset contained within an FeatureDataset.
    DatasetsRelatedThroughThe Dataset related through an RelationshipClass or AttributedRelationshipClass.
    FeatureClassInUtilityNetworkThe FeatureClass participating in an ArcGIS.Core.Data.UtilityNetwork.UtilityNetwork.
    TableInUtilityNetworkThe Table participating in an ArcGIS.Core.Data.UtilityNetwork.UtilityNetwork.
    Example
    Obtaining Related Definitions from Geodatabase
    public async Task ObtainingRelatedDefinitionsFromGeodatabase()
    {
      await ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
      {
        using (Geodatabase geodatabase = new Geodatabase(new DatabaseConnectionFile(new Uri("path\\to\\sde\\file\\sdefile.sde"))))
        {
          // Remember the qualification of DatabaseName. for the RelationshipClass.
    
          RelationshipClassDefinition enterpriseDefinition = 
          geodatabase.GetDefinition<RelationshipClassDefinition>("LocalGovernment.GDB.AddressPointHasSiteAddresses");
          IReadOnlyList<Definition> enterpriseDefinitions = 
          geodatabase.GetRelatedDefinitions(enterpriseDefinition, DefinitionRelationshipType.DatasetsRelatedThrough);
          FeatureClassDefinition enterpriseAddressPointDefinition = 
          enterpriseDefinitions.First(
                  defn => defn.GetName().Equals("LocalGovernment.GDB.AddressPoint")) as FeatureClassDefinition;
    
          FeatureDatasetDefinition featureDatasetDefinition = 
            geodatabase.GetDefinition<FeatureDatasetDefinition>("LocalGovernment.GDB.Address");
          IReadOnlyList<Definition> datasetsInAddressDataset = 
            geodatabase.GetRelatedDefinitions(featureDatasetDefinition, DefinitionRelationshipType.DatasetInFeatureDataset);
          FeatureClassDefinition addressPointInAddressDataset = 
            datasetsInAddressDataset.First(
                  defn => defn.GetName().Equals("LocalGovernment.GDB.AddressPoint")) as FeatureClassDefinition;
    
          RelationshipClassDefinition addressPointHasSiteAddressInAddressDataset = datasetsInAddressDataset.First(
                  defn => defn.GetName().Equals("LocalGovernment.GDB.AddressPointHasSiteAddresses")) as RelationshipClassDefinition;
        }
      });
    }
    Obtaining related Feature Classes from a Relationship Class
    public async Task GetFeatureClassesInRelationshipClassAsync()
    {
      await ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
      {
        using (Geodatabase geodatabase = new Geodatabase(new FileGeodatabaseConnectionPath(new Uri(@"C:\Data\LocalGovernment.gdb"))))
        {
          IReadOnlyList<RelationshipClassDefinition> relationshipClassDefinitions = 
            geodatabase.GetDefinitions<RelationshipClassDefinition>();
    
          foreach (var relationshipClassDefinition in relationshipClassDefinitions)
          {
            IReadOnlyList<Definition> definitions = 
              geodatabase.GetRelatedDefinitions(relationshipClassDefinition,
                DefinitionRelationshipType.DatasetsRelatedThrough);
    
            foreach (var definition in definitions)
            {
              System.Diagnostics.Debug.WriteLine(
                $"Feature class in the RelationshipClass is:{definition.GetName()}");
            }
          }
        }
      });
    }
    Inheritance Hierarchy

    System.Object
       System.ValueType
          System.Enum
             ArcGIS.Core.Data.DefinitionRelationshipType

    Requirements

    Target Platforms: Windows 11, Windows 10, Windows 8.1

    See Also