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Sample: Create and retrieve entity relationships

 

Applies To: Dynamics CRM 2013

This sample code is for Microsoft Dynamics CRM 2013 and Microsoft Dynamics CRM Online. Download the Microsoft Dynamics CRM SDK package. It can be found in the following location in the download package:

SampleCode\CS\Metadata\Relationships\WorkWithRelationships.cs

SampleCode\VB\Metadata\Relationships\WorkWithRelationships.vb

Requirements

For more information about the requirements for running the sample code provided in this SDK, see Use the sample and helper code.

Demonstrates

This sample shows how to how verify that entities are eligible to participate in an entity relationship and then creates a 1:N and N:N entity relationship.

Example


using System;
using System.Linq;
using System.Xml.Linq;
using System.ServiceModel;
using System.ServiceModel.Description;

// These namespaces are found in the Microsoft.Xrm.Sdk.dll assembly
// found in the SDK\bin folder.
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Metadata;
using Microsoft.Xrm.Sdk.Messages;

// This namespace is found in Microsoft.Crm.Sdk.Proxy.dll assembly
// found in the SDK\bin folder.
using Microsoft.Crm.Sdk.Messages;

namespace Microsoft.Crm.Sdk.Samples
{
    /// <summary>
    /// This sample shows how to create one to many, many to many relationship.
    /// </summary>
    public class WorkWithRelationships
    {
        #region Class Level Members

        /// <summary>
        /// Stores the organization service proxy.
        /// </summary>
        private OrganizationServiceProxy _serviceProxy;

        // Define the IDs needed for this sample.
        private Guid _oneToManyRelationshipId;
        private System.String _oneToManyRelationshipName;

        private Guid _manyToManyRelationshipId;
        private System.String _manyToManyRelationshipName;

        #endregion Class Level Members

        #region How To Sample Code
        /// <summary>
        /// Create and configure the organization service proxy.
        /// Create one-to-many relationship.
        /// Create many-to-many relationship.
        /// Optionally delete any entity records that were created for this sample.
        /// </summary>
        /// <param name="serverConfig">Contains server connection information.</param>
        /// <param name="promptForDelete">When True, the user will be prompted to delete all
        /// created entities.</param>
        public void Run(ServerConnection.Configuration serverConfig, bool promptForDelete)
        {
            try
            {

                // Connect to the Organization service. 
                // The using statement assures that the service proxy will be properly disposed.
                using (_serviceProxy = ServerConnection.GetOrganizationProxy(serverConfig))
                {
                    // This statement is required to enable early-bound type support.
                    _serviceProxy.EnableProxyTypes();


                    bool eligibleCreateOneToManyRelationship =
                        EligibleCreateOneToManyRelationship("account", "campaign");

                    if (eligibleCreateOneToManyRelationship)
                    {
                        CreateOneToManyRequest createOneToManyRelationshipRequest =
                            new CreateOneToManyRequest
                        {
                            OneToManyRelationship =
                            new OneToManyRelationshipMetadata
                            {
                                ReferencedEntity = "account",
                                ReferencingEntity = "campaign",
                                SchemaName = "new_account_campaign",
                                AssociatedMenuConfiguration = new AssociatedMenuConfiguration
                                {
                                    Behavior = AssociatedMenuBehavior.UseLabel,
                                    Group = AssociatedMenuGroup.Details,
                                    Label = new Label("Account", 1033),
                                    Order = 10000
                                },
                                CascadeConfiguration = new CascadeConfiguration
                                {
                                    Assign = CascadeType.NoCascade,
                                    Delete = CascadeType.RemoveLink,
                                    Merge = CascadeType.NoCascade,
                                    Reparent = CascadeType.NoCascade,
                                    Share = CascadeType.NoCascade,
                                    Unshare = CascadeType.NoCascade
                                }
                            },
                            Lookup = new LookupAttributeMetadata
                            {
                                SchemaName = "new_parent_accountid",
                                DisplayName = new Label("Account Lookup", 1033),
                                RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
                                Description = new Label("Sample Lookup", 1033)
                            }
                        };


                        CreateOneToManyResponse createOneToManyRelationshipResponse =
                            (CreateOneToManyResponse)_serviceProxy.Execute(
                            createOneToManyRelationshipRequest);

                        _oneToManyRelationshipId =
                            createOneToManyRelationshipResponse.RelationshipId;
                        _oneToManyRelationshipName = 
                            createOneToManyRelationshipRequest.OneToManyRelationship.SchemaName;

                        Console.WriteLine(
                            "The one-to-many relationship has been created between {0} and {1}.",
                            "account", "campaign");
                    }



                    bool accountEligibleParticipate =
                        EligibleCreateManyToManyRelationship("account");
                    bool campaignEligibleParticipate =
                        EligibleCreateManyToManyRelationship("campaign");

                    if (accountEligibleParticipate &amp;&amp; campaignEligibleParticipate)
                    {

                        CreateManyToManyRequest createManyToManyRelationshipRequest =
                            new CreateManyToManyRequest
                        {
                            IntersectEntitySchemaName = "new_accounts_campaigns",
                            ManyToManyRelationship = new ManyToManyRelationshipMetadata
                            {
                                SchemaName = "new_accounts_campaigns",
                                Entity1LogicalName = "account",
                                Entity1AssociatedMenuConfiguration =
                                new AssociatedMenuConfiguration
                                {
                                    Behavior = AssociatedMenuBehavior.UseLabel,
                                    Group = AssociatedMenuGroup.Details,
                                    Label = new Label("Account", 1033),
                                    Order = 10000
                                },
                                Entity2LogicalName = "campaign",
                                Entity2AssociatedMenuConfiguration =
                                new AssociatedMenuConfiguration
                                {
                                    Behavior = AssociatedMenuBehavior.UseLabel,
                                    Group = AssociatedMenuGroup.Details,
                                    Label = new Label("Campaign", 1033),
                                    Order = 10000
                                }
                            }
                        };

                        CreateManyToManyResponse createManytoManyRelationshipResponse =
                            (CreateManyToManyResponse)_serviceProxy.Execute(
                            createManyToManyRelationshipRequest);


                        _manyToManyRelationshipId =
                            createManytoManyRelationshipResponse.ManyToManyRelationshipId;
                        _manyToManyRelationshipName =
                            createManyToManyRelationshipRequest.ManyToManyRelationship.SchemaName;

                        Console.WriteLine(
                            "The many-to-many relationship has been created between {0} and {1}.",
                            "account", "campaign");
                    }


                    // Publish the customization changes.
                    _serviceProxy.Execute(new PublishAllXmlRequest());



                    //You can use either the Name or the MetadataId of the relationship.

                    //Retrieve the One-to-many relationship using the MetadataId.
                    RetrieveRelationshipRequest retrieveOneToManyRequest =
                        new RetrieveRelationshipRequest { MetadataId = _oneToManyRelationshipId };
                    RetrieveRelationshipResponse retrieveOneToManyResponse =
                        (RetrieveRelationshipResponse)_serviceProxy.Execute(retrieveOneToManyRequest);

                    Console.WriteLine("Retrieved {0} One-to-many relationship by id", retrieveOneToManyResponse.RelationshipMetadata.SchemaName);

                    //Retrieve the Many-to-many relationship using the Name.
                    RetrieveRelationshipRequest retrieveManyToManyRequest =
                        new RetrieveRelationshipRequest { Name = _manyToManyRelationshipName};
                    RetrieveRelationshipResponse retrieveManyToManyResponse =
                        (RetrieveRelationshipResponse)_serviceProxy.Execute(retrieveManyToManyRequest);

                    Console.WriteLine("Retrieved {0} Many-to-Many relationship by Name", retrieveManyToManyResponse.RelationshipMetadata.MetadataId);


                    DeleteRequiredRecords(promptForDelete);


                }
            }

            // Catch any service fault exceptions that Microsoft Dynamics CRM throws.
            catch (FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault>)
            {
                // You can handle an exception here or pass it back to the calling method.
                throw;
            }
        }

        /// <summary>
        /// Determines whether the entity can participate in a many-to-many relationship.
        /// </summary>
        /// <param name="entity">Entity</param>
        /// <returns></returns>
        public bool EligibleCreateManyToManyRelationship(string entity)
        {
            CanManyToManyRequest canManyToManyRequest = new CanManyToManyRequest
            {
                EntityName = entity
            };

            CanManyToManyResponse canManyToManyResponse =
                (CanManyToManyResponse)_serviceProxy.Execute(canManyToManyRequest);

            if (!canManyToManyResponse.CanManyToMany)
            {
                Console.WriteLine(
                    "Entity {0} can't participate in a many-to-many relationship.", 
                    entity);
            }

            return canManyToManyResponse.CanManyToMany;
        }
        /// <summary>
        /// Determines whether two entities are eligible to participate in a relationship
        /// </summary>
        /// <param name="referencedEntity">Primary Entity</param>
        /// <param name="referencingEntity">Referencing Entity</param>
        /// <returns></returns>
        public bool EligibleCreateOneToManyRelationship(string referencedEntity, 
            string referencingEntity)
        {
            //Checks whether the specified entity can be the primary entity in one-to-many
            //relationship.
            CanBeReferencedRequest canBeReferencedRequest = new CanBeReferencedRequest
            {
                EntityName = referencedEntity
            };

            CanBeReferencedResponse canBeReferencedResponse =
                (CanBeReferencedResponse)_serviceProxy.Execute(canBeReferencedRequest);

            if (!canBeReferencedResponse.CanBeReferenced)
            {
                Console.WriteLine(
                    "Entity {0} can't be the primary entity in this one-to-many relationship", 
                    referencedEntity);
            }

            //Checks whether the specified entity can be the referencing entity in one-to-many
            //relationship.
            CanBeReferencingRequest canBereferencingRequest = new CanBeReferencingRequest
            {
                EntityName = referencingEntity
            };

            CanBeReferencingResponse canBeReferencingResponse =
                (CanBeReferencingResponse)_serviceProxy.Execute(canBereferencingRequest);

            if (!canBeReferencingResponse.CanBeReferencing)
            {
                Console.WriteLine(
                    "Entity {0} can't be the referencing entity in this one-to-many relationship", 
                    referencingEntity);
            }


            if (canBeReferencedResponse.CanBeReferenced == true
                &amp;&amp; canBeReferencingResponse.CanBeReferencing == true)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// Deletes the relationships that was created for this sample.
        /// <param name="prompt">Indicates whether to prompt the user to delete 
        /// the records created in this sample.</param>
        /// </summary>
        public void DeleteRequiredRecords(bool prompt)
        {
            bool deleteRecords = true;

            if (prompt)
            {
                Console.WriteLine("\nDo you want these entity relationships to be deleted? (y/n)");
                String answer = Console.ReadLine();

                deleteRecords = (answer.StartsWith("y") || answer.StartsWith("Y"));
            }

            if (deleteRecords)
            {
                DeleteRelationshipRequest deleteOneToManyRelationshipRequest = 
                    new DeleteRelationshipRequest
                {                    
                    Name = "new_account_campaign"
                };

                _serviceProxy.Execute(deleteOneToManyRelationshipRequest);

                DeleteRelationshipRequest deleteManyToManyRelationshipRequest = 
                    new DeleteRelationshipRequest
                {
                    Name = "new_accounts_campaigns"
                };

                _serviceProxy.Execute(deleteManyToManyRelationshipRequest);

                Console.WriteLine("Entity Relationships have been deleted.");
            }
        }

        #endregion How To Sample Code

        #region Main
        /// <summary>
        /// Standard Main() method used by most SDK samples.
        /// </summary>
        /// <param name="args"></param>
        static public void Main(string[] args)
        {
            try
            {
                // Obtain the target organization's Web address and client logon 
                // credentials from the user.
                ServerConnection serverConnect = new ServerConnection();
                ServerConnection.Configuration config = serverConnect.GetServerConfiguration();

                WorkWithRelationships app = new WorkWithRelationships();
                app.Run(config, true);
            }
            catch (FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault> ex)
            {
                Console.WriteLine("The application terminated with an error.");
                Console.WriteLine("Timestamp: {0}", ex.Detail.Timestamp);
                Console.WriteLine("Code: {0}", ex.Detail.ErrorCode);
                Console.WriteLine("Message: {0}", ex.Detail.Message);
                Console.WriteLine("Plugin Trace: {0}", ex.Detail.TraceText);
                Console.WriteLine("Inner Fault: {0}",
                    null == ex.Detail.InnerFault ? "No Inner Fault" : "Has Inner Fault");
            }
            catch (System.TimeoutException ex)
            {
                Console.WriteLine("The application terminated with an error.");
                Console.WriteLine("Message: {0}", ex.Message);
                Console.WriteLine("Stack Trace: {0}", ex.StackTrace);
                Console.WriteLine("Inner Fault: {0}",
                    null == ex.InnerException.Message ? "No Inner Fault" : ex.InnerException.Message);
            }
            catch (System.Exception ex)
            {
                Console.WriteLine("The application terminated with an error.");
                Console.WriteLine(ex.Message);

                // Display the details of the inner exception.
                if (ex.InnerException != null)
                {
                    Console.WriteLine(ex.InnerException.Message);

                    FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault> fe
                        = ex.InnerException
                        as FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault>;
                    if (fe != null)
                    {
                        Console.WriteLine("Timestamp: {0}", fe.Detail.Timestamp);
                        Console.WriteLine("Code: {0}", fe.Detail.ErrorCode);
                        Console.WriteLine("Message: {0}", fe.Detail.Message);
                        Console.WriteLine("Plugin Trace: {0}", fe.Detail.TraceText);
                        Console.WriteLine("Inner Fault: {0}",
                            null == fe.Detail.InnerFault ? "No Inner Fault" : "Has Inner Fault");
                    }
                }
            }
            // Additional exceptions to catch: SecurityTokenValidationException, ExpiredSecurityTokenException,
            // SecurityAccessDeniedException, MessageSecurityException, and SecurityNegotiationException.

            finally
            {
                Console.WriteLine("Press <Enter> to exit.");
                Console.ReadLine();
            }

        }
        #endregion Main

    }
}

Imports System.ServiceModel
Imports System.ServiceModel.Description

' These namespaces are found in the Microsoft.Xrm.Sdk.dll assembly
' found in the SDK\bin folder.
Imports Microsoft.Xrm.Sdk
Imports Microsoft.Xrm.Sdk.Client
Imports Microsoft.Xrm.Sdk.Query
Imports Microsoft.Xrm.Sdk.Metadata
Imports Microsoft.Xrm.Sdk.Messages

' This namespace is found in Microsoft.Crm.Sdk.Proxy.dll assembly
' found in the SDK\bin folder.
Imports Microsoft.Crm.Sdk.Messages

Namespace Microsoft.Crm.Sdk.Samples
 ''' <summary>
 ''' This sample shows how to create one to many, many to many relationship.
 ''' </summary>
 Public Class WorkWithRelationships
#Region "Class Level Members"

  ''' <summary>
  ''' Stores the organization service proxy.
  ''' </summary>
  Private _serviceProxy As OrganizationServiceProxy

  ' Define the IDs needed for this sample.
  Private _oneToManyRelationshipId As Guid
  Private _oneToManyRelationshipName As String

  Private _manyToManyRelationshipId As Guid
  Private _manyToManyRelationshipName As String

#End Region ' Class Level Members

#Region "How To Sample Code"
  ''' <summary>
  ''' Create and configure the organization service proxy.
  ''' Create one-to-many relationship.
  ''' Create many-to-many relationship.
  ''' Optionally delete any entity records that were created for this sample.
  ''' </summary>
  ''' <param name="serverConfig">Contains server connection information.</param>
  ''' <param name="promptForDelete">When True, the user will be prompted to delete all
  ''' created entities.</param>
  Public Sub Run(ByVal serverConfig As ServerConnection.Configuration, ByVal promptForDelete As Boolean)
   Try

    ' Connect to the Organization service. 
    ' The using statement assures that the service proxy will be properly disposed.
    _serviceProxy = ServerConnection.GetOrganizationProxy(serverConfig)
    Using _serviceProxy
     ' This statement is required to enable early-bound type support.
     _serviceProxy.EnableProxyTypes()


     Dim eligibleCreateOneToManyRelationship As Boolean =
      Me.EligibleCreateOneToManyRelationship("account", "campaign")

     If eligibleCreateOneToManyRelationship Then
      Dim createOneToManyRelationshipRequest As CreateOneToManyRequest =
       New CreateOneToManyRequest With {
        .OneToManyRelationship = New OneToManyRelationshipMetadata With {
         .ReferencedEntity = "account",
         .ReferencingEntity = "campaign",
         .SchemaName = "new_account_campaign",
         .AssociatedMenuConfiguration =
         New AssociatedMenuConfiguration With {
          .Behavior = AssociatedMenuBehavior.UseLabel,
          .Group = AssociatedMenuGroup.Details,
          .Label = New Label("Account", 1033),
          .Order = 10000},
         .CascadeConfiguration =
         New CascadeConfiguration With {
          .Assign = CascadeType.NoCascade,
          .Delete = CascadeType.RemoveLink,
          .Merge = CascadeType.NoCascade,
          .Reparent = CascadeType.NoCascade,
          .Share = CascadeType.NoCascade,
          .Unshare = CascadeType.NoCascade
         }
        },
        .Lookup = New LookupAttributeMetadata With {
         .SchemaName = "new_parent_accountid",
         .DisplayName = New Label("Account Lookup", 1033),
         .RequiredLevel = New AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
         .Description = New Label("Sample Lookup", 1033)
        }
       }


      Dim createOneToManyRelationshipResponse As CreateOneToManyResponse =
       CType(_serviceProxy.Execute(createOneToManyRelationshipRequest), CreateOneToManyResponse)

      _oneToManyRelationshipId = createOneToManyRelationshipResponse.RelationshipId
      _oneToManyRelationshipName = createOneToManyRelationshipRequest.OneToManyRelationship.SchemaName

      Console.WriteLine("The one-to-many relationship has been created between {0} and {1}.", "account", "campaign")
     End If



     Dim accountEligibleParticipate As Boolean = EligibleCreateManyToManyRelationship("account")
     Dim campaignEligibleParticipate As Boolean = EligibleCreateManyToManyRelationship("campaign")

     If accountEligibleParticipate AndAlso campaignEligibleParticipate Then

      Dim createManyToManyRelationshipRequest As CreateManyToManyRequest =
       New CreateManyToManyRequest With {
        .IntersectEntitySchemaName = "new_accounts_campaigns",
        .ManyToManyRelationship = New ManyToManyRelationshipMetadata With {
         .SchemaName = "new_accounts_campaigns",
         .Entity1LogicalName = "account",
         .Entity1AssociatedMenuConfiguration =
         New AssociatedMenuConfiguration With {
          .Behavior = AssociatedMenuBehavior.UseLabel,
          .Group = AssociatedMenuGroup.Details,
          .Label = New Label("Account", 1033),
          .Order = 10000
         },
         .Entity2LogicalName = "campaign",
         .Entity2AssociatedMenuConfiguration =
         New AssociatedMenuConfiguration With {
          .Behavior = AssociatedMenuBehavior.UseLabel,
          .Group = AssociatedMenuGroup.Details,
          .Label = New Label("Campaign", 1033),
          .Order = 10000
         }
        }
       }

      Dim createManytoManyRelationshipResponse As CreateManyToManyResponse =
       CType(_serviceProxy.Execute(createManyToManyRelationshipRequest), CreateManyToManyResponse)


      _manyToManyRelationshipId = createManytoManyRelationshipResponse.ManyToManyRelationshipId
      _manyToManyRelationshipName = createManyToManyRelationshipRequest.ManyToManyRelationship.SchemaName

      Console.WriteLine("The many-to-many relationship has been created between {0} and {1}.", "account", "campaign")
     End If


     ' Publish the customization changes.
     _serviceProxy.Execute(New PublishAllXmlRequest())



     'You can use either the Name or the MetadataId of the relationship.

     'Retrieve the One-to-many relationship using the MetadataId.
     Dim retrieveOneToManyRequest As RetrieveRelationshipRequest =
      New RetrieveRelationshipRequest With {.MetadataId = _oneToManyRelationshipId}
     Dim retrieveOneToManyResponse As RetrieveRelationshipResponse =
      CType(_serviceProxy.Execute(retrieveOneToManyRequest), RetrieveRelationshipResponse)

     Console.WriteLine("Retrieved {0} One-to-many relationship by id",
                       retrieveOneToManyResponse.RelationshipMetadata.SchemaName)

     'Retrieve the Many-to-many relationship using the Name.
     Dim retrieveManyToManyRequest As RetrieveRelationshipRequest =
      New RetrieveRelationshipRequest With {
       .Name = _manyToManyRelationshipName
      }
     Dim retrieveManyToManyResponse As RetrieveRelationshipResponse =
      CType(_serviceProxy.Execute(retrieveManyToManyRequest), RetrieveRelationshipResponse)

     Console.WriteLine("Retrieved {0} Many-to-Many relationship by Name",
                       retrieveManyToManyResponse.RelationshipMetadata.MetadataId)


     DeleteRequiredRecords(promptForDelete)


    End Using

    ' Catch any service fault exceptions that Microsoft Dynamics CRM throws.
   Catch fe As FaultException(Of Microsoft.Xrm.Sdk.OrganizationServiceFault)
    ' You can handle an exception here or pass it back to the calling method.
    Throw
   End Try
  End Sub

  ''' <summary>
  ''' Determines whether the entity can participate in a many-to-many relationship.
  ''' </summary>
  ''' <param name="entity">Entity</param>
  ''' <returns></returns>
  Public Function EligibleCreateManyToManyRelationship(ByVal entity As String) As Boolean
   Dim canManyToManyRequest As CanManyToManyRequest =
    New CanManyToManyRequest With {.EntityName = entity}

   Dim canManyToManyResponse As CanManyToManyResponse =
    CType(_serviceProxy.Execute(canManyToManyRequest), CanManyToManyResponse)

   If Not canManyToManyResponse.CanManyToMany Then
    Console.WriteLine("Entity {0} can't participate in a many-to-many relationship.", entity)
   End If

   Return canManyToManyResponse.CanManyToMany
  End Function
  ''' <summary>
  ''' Determines whether two entities are eligible to participate in a relationship
  ''' </summary>
  ''' <param name="referencedEntity">Primary Entity</param>
  ''' <param name="referencingEntity">Referencing Entity</param>
  ''' <returns></returns>
  Public Function EligibleCreateOneToManyRelationship(ByVal referencedEntity As String, ByVal referencingEntity As String) As Boolean
   'Checks whether the specified entity can be the primary entity in one-to-many
   'relationship.
   Dim canBeReferencedRequest As CanBeReferencedRequest =
    New CanBeReferencedRequest With {.EntityName = referencedEntity}

   Dim canBeReferencedResponse As CanBeReferencedResponse =
    CType(_serviceProxy.Execute(canBeReferencedRequest), CanBeReferencedResponse)

   If Not canBeReferencedResponse.CanBeReferenced Then
    Console.WriteLine("Entity {0} can't be the primary entity in this one-to-many relationship", referencedEntity)
   End If

   'Checks whether the specified entity can be the referencing entity in one-to-many
   'relationship.
   Dim canBereferencingRequest As CanBeReferencingRequest =
    New CanBeReferencingRequest With {.EntityName = referencingEntity}

   Dim canBeReferencingResponse As CanBeReferencingResponse =
    CType(_serviceProxy.Execute(canBereferencingRequest), CanBeReferencingResponse)

   If Not canBeReferencingResponse.CanBeReferencing Then
    Console.WriteLine("Entity {0} can't be the referencing entity in this one-to-many relationship", referencingEntity)
   End If


   If canBeReferencedResponse.CanBeReferenced = True AndAlso canBeReferencingResponse.CanBeReferencing = True Then
    Return True
   Else
    Return False
   End If
  End Function
  ''' <summary>
  ''' Deletes the relationships that was created for this sample.
  ''' <param name="prompt">Indicates whether to prompt the user to delete 
  ''' the records created in this sample.</param>
  ''' </summary>
  Public Sub DeleteRequiredRecords(ByVal prompt As Boolean)
   Dim deleteRecords As Boolean = True

   If prompt Then
    Console.WriteLine(vbLf &amp; "Do you want these entity relationships to be deleted? (y/n)")
    Dim answer As String = Console.ReadLine()

    deleteRecords = (answer.StartsWith("y") OrElse answer.StartsWith("Y"))
   End If

   If deleteRecords Then
    Dim deleteOneToManyRelationshipRequest As DeleteRelationshipRequest =
     New DeleteRelationshipRequest With {
      .Name = "new_account_campaign"
     }

    _serviceProxy.Execute(deleteOneToManyRelationshipRequest)

    Dim deleteManyToManyRelationshipRequest As DeleteRelationshipRequest =
     New DeleteRelationshipRequest With {
      .Name = "new_accounts_campaigns"
     }

    _serviceProxy.Execute(deleteManyToManyRelationshipRequest)

    Console.WriteLine("Entity Relationships have been deleted.")
   End If
  End Sub

#End Region ' How To Sample Code

#Region "Main"
  ''' <summary>
  ''' Standard Main() method used by most SDK samples.
  ''' </summary>
  ''' <param name="args"></param>
  Public Shared Sub Main(ByVal args() As String)
   Try
    ' Obtain the target organization's Web address and client logon 
    ' credentials from the user.
    Dim serverConnect As New ServerConnection()
    Dim config As ServerConnection.Configuration = serverConnect.GetServerConfiguration()

    Dim app As New WorkWithRelationships()
    app.Run(config, True)
   Catch ex As FaultException(Of Microsoft.Xrm.Sdk.OrganizationServiceFault)
    Console.WriteLine("The application terminated with an error.")
    Console.WriteLine("Timestamp: {0}", ex.Detail.Timestamp)
    Console.WriteLine("Code: {0}", ex.Detail.ErrorCode)
    Console.WriteLine("Message: {0}", ex.Detail.Message)
    Console.WriteLine("Plugin Trace: {0}", ex.Detail.TraceText)
                Console.WriteLine("Inner Fault: {0}", If(Nothing Is ex.Detail.InnerFault, "No Inner Fault", "Has Inner Fault"))
   Catch ex As TimeoutException
    Console.WriteLine("The application terminated with an error.")
    Console.WriteLine("Message: {0}", ex.Message)
    Console.WriteLine("Stack Trace: {0}", ex.StackTrace)
                Console.WriteLine("Inner Fault: {0}", If(Nothing Is ex.InnerException.Message, "No Inner Fault", ex.InnerException.Message))
   Catch ex As Exception
    Console.WriteLine("The application terminated with an error.")
    Console.WriteLine(ex.Message)

    ' Display the details of the inner exception.
    If ex.InnerException IsNot Nothing Then
     Console.WriteLine(ex.InnerException.Message)

     Dim fe As FaultException(Of Microsoft.Xrm.Sdk.OrganizationServiceFault) =
      TryCast(ex.InnerException, FaultException(Of Microsoft.Xrm.Sdk.OrganizationServiceFault))
     If fe IsNot Nothing Then
      Console.WriteLine("Timestamp: {0}", fe.Detail.Timestamp)
      Console.WriteLine("Code: {0}", fe.Detail.ErrorCode)
      Console.WriteLine("Message: {0}", fe.Detail.Message)
      Console.WriteLine("Plugin Trace: {0}", fe.Detail.TraceText)
                        Console.WriteLine("Inner Fault: {0}", If(Nothing Is fe.Detail.InnerFault, "No Inner Fault", "Has Inner Fault"))
     End If
    End If
    ' Additional exceptions to catch: SecurityTokenValidationException, ExpiredSecurityTokenException,
    ' SecurityAccessDeniedException, MessageSecurityException, and SecurityNegotiationException.

   Finally
    Console.WriteLine("Press <Enter> to exit.")
    Console.ReadLine()
   End Try

  End Sub
#End Region ' Main

 End Class
End Namespace

See Also

Extend the metadata model
Customize entity relationship metadata
Create and retrieve entity relationships
Sample: Dump entity relationship information to a file