Beispiel: Abfragen von Verbindungen nach Datensatz (frühe Bindung)
Veröffentlicht: Januar 2017
Gilt für: Dynamics 365 (online), Dynamics 365 (on-premises), Dynamics CRM 2016, Dynamics CRM Online
Dieser Beispielcode ist für Microsoft Dynamics 365 (online und lokal).Laden Sie das Microsoft Dynamics CRM SDK-Paket herunter. Er ist an folgender Position im Downloadpaket verfügbar:
SampleCode\CS\BusinessDataModel\BusinessManagement\QueryConnections.cs
Anforderungen
Weitere Informationen zu den Anforderungen zum Ausführen des in diesem SDK enthaltenen Beispielcodes finden Sie unter Verwenden des Beispiel- und Hilfscode.
Demonstriert
Dieses Beispiel zeigt, wie ein bestimmter Datensatz in Verbindungen abgefragt wird. Dabei werden Verbindungen zwischen einem Kontakt und zwei Konten erstellt und dann die Verbindungen des Kontakts gesucht.
Beispiel
using System;
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.Discovery;
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 query connections.
/// </summary>
public class QueryConnections
{
#region Class Level Members
/// <summary>
/// Stores the organization service proxy.
/// </summary>
private OrganizationServiceProxy _serviceProxy;
// Define the IDs needed for this sample.
public Guid _connectionRoleId;
public Guid _account1Id;
public Guid _account2Id;
public Guid _contactId;
public Guid _connection1Id;
public Guid _connection2Id;
#endregion Class Level Members
#region How To Sample Code
/// <summary>
/// Create and configure the organization service proxy.
/// Call the method to create any data that this sample requires.
/// Query the connections.
/// 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 = new OrganizationServiceProxy(serverConfig.OrganizationUri, serverConfig.HomeRealmUri,serverConfig.Credentials, serverConfig.DeviceCredentials))
{
// This statement is required to enable early-bound type support.
_serviceProxy.EnableProxyTypes();
// Call the method to create any data that this sample requires.
CreateRequiredRecords();
// This query retrieves all connections this contact is part of.
QueryExpression query = new QueryExpression
{
EntityName = Connection.EntityLogicalName,
ColumnSet = new ColumnSet("connectionid"),
Criteria = new FilterExpression
{
FilterOperator = LogicalOperator.And,
Conditions =
{
// You can safely query against only record1id or
// record2id - CRM will find all connections this
// entity is a part of either way.
new ConditionExpression
{
AttributeName = "record1id",
Operator = ConditionOperator.Equal,
Values = { _contactId }
}
}
}
};
EntityCollection results = _serviceProxy.RetrieveMultiple(query);
// TODO: Here you could do a variety of tasks with the
// connections retrieved, such as listing the connected entities,
// finding reciprocal connections, etc.
Console.WriteLine("Retrieved {0} connectionrole instances.", results.Entities.Count);
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>
/// This method creates any entity records that this sample requires.
/// Create a new connectionrole instance.
/// </summary>
public void CreateRequiredRecords()
{
// Define some anonymous types to define the range
// of possible connection property values.
var Categories = new
{
Business = 1,
Family = 2,
Social = 3,
Sales = 4,
Other = 5
};
// Create a Connection Role
ConnectionRole setupConnectionRole = new ConnectionRole
{
Name = "Example Connection Role",
Description = "This is an example one sided connection role.",
Category = new OptionSetValue(Categories.Business),
};
_connectionRoleId = _serviceProxy.Create(setupConnectionRole);
Console.WriteLine("Created {0}.", setupConnectionRole.Name);
// Create a related Connection Role Object Type Code record for Account
ConnectionRoleObjectTypeCode newAccountConnectionRoleTypeCode
= new ConnectionRoleObjectTypeCode
{
ConnectionRoleId = new EntityReference(
ConnectionRole.EntityLogicalName, _connectionRoleId),
AssociatedObjectTypeCode = Account.EntityLogicalName
};
_serviceProxy.Create(newAccountConnectionRoleTypeCode);
Console.WriteLine(
"Created a related Connection Role Object Type Code record for Account."
);
// Create a related Connection Role Object Type Code record for Contact
ConnectionRoleObjectTypeCode newContactConnectionRoleTypeCode
= new ConnectionRoleObjectTypeCode
{
ConnectionRoleId = new EntityReference(
ConnectionRole.EntityLogicalName, _connectionRoleId),
AssociatedObjectTypeCode = Contact.EntityLogicalName
};
_serviceProxy.Create(newContactConnectionRoleTypeCode);
Console.WriteLine(
"Created a related Connection Role Object Type Code record for Contact."
);
//Create a few account records for use in the connections.
Account setupAccount1 = new Account { Name = "Example Account 1" };
_account1Id = _serviceProxy.Create(setupAccount1);
Console.WriteLine("Created {0}.", setupAccount1.Name);
Account setupAccount2 = new Account { Name = "Example Account 2" };
_account2Id = _serviceProxy.Create(setupAccount2);
Console.WriteLine("Created {0}.", setupAccount2.Name);
//Creates a contact used in the connection.
Contact setupContact = new Contact { LastName = "Example Contact" };
_contactId = _serviceProxy.Create(setupContact);
Console.WriteLine("Created {0}.", setupContact.LastName);
// Create a new connection between Account 1 and the contact record.
Connection newConnection1 = new Connection
{
Record1Id = new EntityReference(Account.EntityLogicalName,
_account1Id),
Record1RoleId = new EntityReference(ConnectionRole.EntityLogicalName,
_connectionRoleId),
Record2Id = new EntityReference(Contact.EntityLogicalName,
_contactId)
};
_connection1Id = _serviceProxy.Create(newConnection1);
Console.WriteLine(
"Created a connection between the account 1 and the contact.");
// Create a new connection between the contact and Account 2 record
Connection newConnection2 = new Connection
{
Record1Id = new EntityReference(Contact.EntityLogicalName,
_contactId),
Record1RoleId = new EntityReference(ConnectionRole.EntityLogicalName,
_connectionRoleId),
Record2Id = new EntityReference(Account.EntityLogicalName,
_account2Id)
};
_connection2Id = _serviceProxy.Create(newConnection2);
Console.WriteLine(
"Created a connection between the contact and the account 2.");
return;
}
/// <summary>
/// Deletes any entity records that were 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 records deleted? (y/n)");
String answer = Console.ReadLine();
deleteRecords = (answer.StartsWith("y") || answer.StartsWith("Y"));
}
if (deleteRecords)
{
_serviceProxy.Delete(Connection.EntityLogicalName, _connection1Id);
_serviceProxy.Delete(Connection.EntityLogicalName, _connection2Id);
_serviceProxy.Delete(Account.EntityLogicalName, _account1Id);
_serviceProxy.Delete(Account.EntityLogicalName, _account2Id);
_serviceProxy.Delete(Contact.EntityLogicalName, _contactId);
_serviceProxy.Delete(ConnectionRole.EntityLogicalName, _connectionRoleId);
Console.WriteLine("Entity records 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();
QueryConnections app = new QueryConnections();
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
}
}
Siehe auch
Beispiel-Code für Verbindungsentitäten
Verbindungsentitäten
Microsoft Dynamics 365
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