示例：序列化和反序列化实体实例
发布日期： 2017年1月
适用于： Dynamics 365 (online),Dynamics 365 (on-premises),Dynamics CRM 2016,Dynamics CRM Online
此示例代码适用于 Microsoft Dynamics 365（在线或本地）。下载 Microsoft Dynamics CRM SDK 包。 它可能位于下载包的以下位置：
SampleCode\CS\BusinessDataModel\BusinessManagement\SerializeAndDeserialize.cs
要求
有关运行此 SDK 中提供的示例代码的要求的详细信息，请参阅使用示例和帮助程序代码。
演示
此示例演示如何将早期绑定和晚期绑定实体实例序列化为 XML 格式，以及如何从 XML 格式反序列化为早期绑定的实体实例。
示例
using System;
using System.IO;
using System.Runtime.Serialization;
using System.ServiceModel;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Sdk.Query;
namespace Microsoft.Crm.Sdk.Samples
{
/// <summary>
/// This sample shows how to serialize both early-bound and late-bound entity instances (records). In
/// addition, it shows how to de-serialize from XML to an early-bound entity instance.
/// </summary>
public class SerializeAndDeserialize
{
#region Class Level Members
private OrganizationServiceProxy _serviceProxy;
private Guid _contactId;
#endregion Class Level Members
#region How To Sample Code
/// <summary>
/// Run this sample, which shows both how to serialize late-bound and
/// early-bound entity instances to XML and how to de-serialize them back from
/// XML into entity instances.
/// </summary>
/// <param name="serverConfig"> Contains server connection information.</param>
/// <param name="promptToDelete"> When True, the user will be prompted to delete all
/// created entities.
public void Run(ServerConnection.Configuration serverConfig, bool promptToDelete)
{
using (_serviceProxy = new OrganizationServiceProxy(serverConfig.OrganizationUri, serverConfig.HomeRealmUri,serverConfig.Credentials, serverConfig.DeviceCredentials))
{
// This statement is required to enable early-bound type support.
_serviceProxy.EnableProxyTypes();
CreateRequiredRecords();
#region Retrieve the contact from Microsoft CRM
// Create the column set object that indicates the fields to be retrieved.
var columns = new ColumnSet(
"contactid",
"firstname",
"lastname",
"jobtitle");
// Retrieve the contact from Microsoft CRM using the ID of the record that was just created.
// The EntityLogicalName indicates the EntityType of the object being retrieved.
var contact = (Contact)_serviceProxy.Retrieve(
Contact.EntityLogicalName, _contactId, columns);
Console.WriteLine("The contact for the sample has been retrieved.");
#endregion
#region Serialize the contact into XML and save it
// Serialize the contact into XML and write it to the hard drive.
var earlyBoundSerializer = new DataContractSerializer(typeof(Contact));
// Create a unique file name for the XML.
String earlyboundFile = "Contact_early_" + contact.ContactId.Value.ToString("B") + ".xml";
// Write the serialized object to a file. The using statement will
// ensure that the FileStream is disposed of correctly. The FileMode
// will ensure that the file is overwritten if it already exists.
using (var file = new FileStream(earlyboundFile, FileMode.Create))
{
// Write the XML to disk.
earlyBoundSerializer.WriteObject(file, contact);
}
Console.WriteLine(
"The early-bound contact instance has been serialized to a file, {0}.",
earlyboundFile);
// Convert the contact to a late-bound entity instance and serialize it to disk.
var lateboundContact = contact.ToEntity<Entity>();
String lateboundFile = "Contact_late_" + lateboundContact.Id.ToString("B") + ".xml";
var lateBoundSerializer = new DataContractSerializer(typeof(Entity));
// Write the serialized object to a file.
using (var file = new FileStream(lateboundFile, FileMode.Create))
{
lateBoundSerializer.WriteObject(file, lateboundContact);
}
Console.WriteLine(
"The late-bound contact instance has been serialized to a file, {0}.",
lateboundFile);
#endregion
#region De-serialize the Microsoft CRM contact from XML
Contact deserializedContact = null;
using (var file = new FileStream(earlyboundFile, FileMode.Open))
{
deserializedContact = (Contact)earlyBoundSerializer.ReadObject(file);
Console.WriteLine("The contact has been de-serialized: {0} {1}",
deserializedContact.FirstName, deserializedContact.LastName);
}
#endregion
#region Update contact in Microsoft CRM
// Update the contact in Microsoft CRM to prove that the de-serialization worked.
deserializedContact.JobTitle = "Plumber";
_serviceProxy.Update(deserializedContact);
Console.WriteLine("The contact was updated in Microsoft CRM.");
#endregion
DeleteRequiredRecords(promptToDelete);
}
}
/// <summary>
/// Creates a contact which is required for running this sample.
/// </summary>
private void CreateRequiredRecords()
{
// Create a contact entity record that will be serialized into XML.
var contactCreate = new Contact();
contactCreate.FirstName = "Thomas";
contactCreate.LastName = "Andersen";
// Create the entity in Microsoft CRM and get its ID.
_contactId = _serviceProxy.Create(contactCreate);
Console.WriteLine("The contact for the sample has been created.");
}
/// <summary>
/// Deletes the contact record that was used in the sample if the user responds in the
/// affirmative.
/// </summary>
/// <param name="promptToDelete">whether or not to delete the contact</param>
private void DeleteRequiredRecords(bool promptToDelete)
{
var toBeDeleted = true;
if (promptToDelete)
{
// Ask the user if the created entities should be deleted.
Console.Write("\nDo you want these entity records deleted? (y/n) [y]: ");
String answer = Console.ReadLine();
if (answer.StartsWith("y") ||
answer.StartsWith("Y") ||
answer == String.Empty)
{
toBeDeleted = true;
}
else
{
toBeDeleted = false;
}
}
if (toBeDeleted)
{
_serviceProxy.Delete(Contact.EntityLogicalName, _contactId);
Console.WriteLine("The contact has been deleted.");
}
}
#endregion How To Sample Code
#region Main method
/// <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();
var app = new SerializeAndDeserialize();
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 method
}
}
另请参阅
在代码中使用早期绑定实体类
示例：根据现有记录初始化新记录。
混合早期和晚期绑定实体
DataContractSerializer 类
Microsoft Dynamics 365
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