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Esempio: creazione, recupero, aggiornamento ed eliminazione (associazione ritardata)

 

Data di pubblicazione: gennaio 2017

Si applica a: Dynamics 365 (online), Dynamics 365 (on-premises), Dynamics CRM 2016, Dynamics CRM Online

Questo esempio è per Aggiornamento di Microsoft Dynamics CRM 2015 e Microsoft Dynamics CRM Online 2015.Scarica il pacchetto SDK di Microsoft Dynamics CRM. È disponibile nel percorso seguente nel pacchetto di download:

SampleCode\CS\GeneralProgramming\LateBound\CRUDOperationsDE.cs

Requisiti

Per ulteriori informazioni sui requisiti per l'esecuzione del codice di esempio fornito nell'SDK, vedi Utilizzare il codice di esempio e dell'helper.

Esempio

In questo esempio vengono illustrate le operazioni di creazione, recupero, aggiornamento ed eliminazione su un account tramite la classe con associazione ritardata Entity.


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;

namespace Microsoft.Crm.Sdk.Samples
{
    /// <summary>
    /// Demonstrates how to do basic entity operations like create, retrieve,
    /// update, and delete.
    /// If you want to run this sample repeatedly, you have the option to 
    /// delete all the records created at the end of execution.
    /// </summary>
    public class CRUDOperationsDE
    {
        #region Class Level Members
        /// <summary>
        /// Stores the organization service proxy.
        /// </summary>
        private OrganizationServiceProxy _serviceProxy;
        private IOrganizationService _service;

        // Define the IDs needed for this sample.
        private Guid _accountId;

        #endregion Class Level Members

        #region How To Sample Code
        /// <summary>
        /// Create and configure the organization service proxy.
        /// Create an account record
        /// Retrieve the account record
        /// Update the account record
        /// 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))
                {
                    _service = (IOrganizationService)_serviceProxy;

                    // Instaniate an account object.
                    Entity account = new Entity("account");

                    // Set the required attributes. For account, only the name is required. 
                    // See the Entity Metadata topic in the SDK documentatio to determine 
                    // which attributes must be set for each entity.
                    account["name"] = "Fourth Coffee";

                    // Create an account record named Fourth Coffee.
                    _accountId = _service.Create(account);

                    Console.Write("{0} {1} created, ", account.LogicalName, account.Attributes["name"]);

                    // Create a column set to define which attributes should be retrieved.
                    ColumnSet attributes = new ColumnSet(new string[] { "name", "ownerid" });

                    // Retrieve the account and its name and ownerid attributes.
                    account = _service.Retrieve(account.LogicalName, _accountId, attributes);
                    Console.Write("retrieved, ");

                    // Update the postal code attribute.
                    account["address1_postalcode"] = "98052";

                    // The address 2 postal code was set accidentally, so set it to null.
                    account["address2_postalcode"] = null;

                    // Shows use of Money.
                    account["revenue"] = new Money(5000000);

                    // Shows use of boolean.
                    account["creditonhold"] = false;

                    // Update the account.
                    _service.Update(account);
                    Console.WriteLine("and updated.");

                    // Delete the account.
                    bool deleteRecords = true;

                    if (promptForDelete)
                    {
                        Console.WriteLine("\nDo you want these entity records deleted? (y/n) [y]: ");
                        String answer = Console.ReadLine();

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

                    if (deleteRecords)
                    {
                        _service.Delete("account", _accountId);

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

                }
            }

            // 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;
            }
        }

        #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();

                CRUDOperationsDE app = new CRUDOperationsDE();
                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
    }
}

Vedere anche

IOrganizationService
Create
Retrieve
Update
Delete
Utilizzare la classe di entità con associazione tardiva nel codice
Codice dell'helper: classe di ServerConnection
Esempio: creare, recuperare, aggiornare ed eliminare i record (associazione anticipata)

Microsoft Dynamics 365

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