RelationshipClassDefinition Class
Represents the schema and properties of a
RelationshipClass.
Obtaining Definition from Geodatabase
public async Task ObtainingDefinitionFromGeodatabase()
{
await ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
{
using (Geodatabase geodatabase = new Geodatabase(new DatabaseConnectionFile(new Uri("path\\to\\sde\\file\\sdefile.sde"))))
{
// Remember that for Enterprise databases you have to qualify your dataset names with the DatabaseName and UserName.
TableDefinition enterpriseTableDefinition = geodatabase.GetDefinition<TableDefinition>("LocalGovernment.GDB.CitizenContactInfo");
// It does not matter if the dataset is within a FeatureDataset or not.
FeatureClassDefinition featureClassDefinition = geodatabase.GetDefinition<FeatureClassDefinition>("LocalGovernment.GDB.FireStation");
// GetDefinition For a RelationshipClass.
RelationshipClassDefinition relationshipClassDefinition = geodatabase.GetDefinition<RelationshipClassDefinition>("LocalGovernment.GDB.AddressPointHasSiteAddresses");
// GetDefinition For a FeatureDataset.
FeatureDatasetDefinition featureDatasetDefinition = geodatabase.GetDefinition<FeatureDatasetDefinition>("LocalGovernment.GDB.Address");
}
});
}
Obtaining List of Definitions from Geodatabase
public async Task ObtainingDefinitionsFromGeodatabase()
{
await ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
{
using (Geodatabase geodatabase = new Geodatabase(new DatabaseConnectionFile(new Uri("path\\to\\sde\\file\\sdefile.sde"))))
{
IReadOnlyList<FeatureClassDefinition> enterpriseDefinitions = geodatabase.GetDefinitions<FeatureClassDefinition>();
IEnumerable<Definition> featureClassesHavingGlobalID = enterpriseDefinitions.Where(definition => definition.HasGlobalID());
IReadOnlyList<FeatureDatasetDefinition> featureDatasetDefinitions = geodatabase.GetDefinitions<FeatureDatasetDefinition>();
bool electionRelatedFeatureDatasets = featureDatasetDefinitions.Any(definition => definition.GetName().Contains("Election"));
IReadOnlyList<AttributedRelationshipClassDefinition> attributedRelationshipClassDefinitions = geodatabase.GetDefinitions<AttributedRelationshipClassDefinition>();
IReadOnlyList<RelationshipClassDefinition> relationshipClassDefinitions = geodatabase.GetDefinitions<RelationshipClassDefinition>();
}
});
}
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 (RelationshipClassDefinition relationshipClassDefinition in relationshipClassDefinitions)
{
IReadOnlyList<Definition> definitions = geodatabase.GetRelatedDefinitions(relationshipClassDefinition, DefinitionRelationshipType.DatasetsRelatedThrough);
foreach (Definition definition in definitions)
{
System.Diagnostics.Debug.WriteLine($"Feature class in the RelationshipClass is:{definition.GetName()}");
}
}
}
});
}
Target Platforms: Windows 11, Windows 10
ArcGIS Pro version: 3 or higher.