OpenRelationshipClass Method

Gets a IReadOnlyList of specific RelationshipClass or AttributedRelationshipClass instances associated with the and the where is the origin table/feature class and is the destination table/feature class. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public IReadOnlyList<RelationshipClass> OpenRelationshipClass( 
   string originClass,
   string destinationClass
)

Public Function OpenRelationshipClass( _
   ByVal originClass As String, _
   ByVal destinationClass As String _
) As IReadOnlyList(Of RelationshipClass)

Parameters

originClass: The name of the origin table/feature class in the relationship. This value can be obtained by calling RelationshipClassDefinition.GetOriginClass. For feature service geodatabases, this should be a layer ID or the name of the table as it is exposed through the feature service (e.g., "L0States").
destinationClass: The name of the destination table/feature class in the relationship. This value can be obtained by calling RelationshipClassDefinition.GetDestinationClass. For feature service geodatabases, this should be a layer ID or the name of the table as it exposed through the feature service (e.g., "L1Counties").

Return Value

A IReadOnlyList of specific RelationshipClass or AttributedRelationshipClass instances.

Exceptions

Exception	Description
System.InvalidOperationException	No valid geodatabase has been opened prior to calling this operation.
System.ArgumentException	originClass or destinationClass is null or an empty string.
GeodatabaseException	A geodatabase-related exception has occurred.

Remarks

This routine works with regular RelationshipClasss as well as AttributedRelationshipClasss.

Example

// Must be called within QueuedTask.Run().  
// When used with file or enterprise geodatabases, this routine takes two table names.
// When used with feature services, this routine takes layer IDs, or the names of the tables as they are exposed through the service (e.g., "L0States")
public IReadOnlyList<RelationshipClass> OpenRelationshipClassFeatureServices(Geodatabase geodatabase, string originClass, string destinationClass)
{
  return geodatabase.OpenRelationshipClass(originClass, destinationClass);
}

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

Reference

Geodatabase Class
Geodatabase Members