示例：检索电子邮件模板的电子邮件附件
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\Templates\GetEmailTemplateAttachments.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
此示例演示如何通过使用 IOrganizationService.RetrieveMultiple 方法检索与电子邮件模板关联的电子邮件附件。
示例
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;
// This namespace is found in Microsoft.Crm.Sdk.Proxy.dll assembly
// found in the SDK\bin folder.
using Microsoft.Crm.Sdk.Messages;
using System.Collections.Generic;
namespace Microsoft.Crm.Sdk.Samples
{
/// <summary>
/// Demonstrates how to retrieve email attachments associated with an email template.
/// 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 GetEmailTemplateAttachments
{
#region Class Level Members
/// <summary>
/// Stores the organization service proxy.
/// </summary>
private OrganizationServiceProxy _serviceProxy;
// Define the IDs needed for this sample.
public Guid _emailTemplateId;
public List<Guid> _templateAttachmentIds = new List<Guid>();
#endregion Class Level Members
#region How To Sample Code
/// <summary>
/// Create and configure the organization service proxy.
/// Create an email template and several attachments.
/// Retrieve the email attachments
/// Optionally delete template and attachments.
/// </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();
//Create a query to retrieve attachments.
QueryExpression query = new QueryExpression
{
EntityName = ActivityMimeAttachment.EntityLogicalName,
ColumnSet = new ColumnSet("filename"),
//Define the conditions for each attachment.
Criteria =
{
FilterOperator = LogicalOperator.And,
Conditions =
{
//The ObjectTypeCode must be specified, or else the query
//defaults to "email" instead of "template".
new ConditionExpression
{
AttributeName = "objecttypecode",
Operator = ConditionOperator.Equal,
Values = {Template.EntityTypeCode}
},
//Specify which template we need.
new ConditionExpression
{
AttributeName = "objectid",
Operator = ConditionOperator.Equal,
Values = {_emailTemplateId}
}
}
}
};
//Write out the filename of each attachment retrieved.
foreach (ActivityMimeAttachment attachment in _serviceProxy.RetrieveMultiple(query).Entities)
{
Console.WriteLine("Retrieved attachment {0}", attachment.FileName);
}
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.
/// </summary>
public void CreateRequiredRecords()
{
//Define the email template to create.
Template emailTemplate = new Template
{
Title = "An example email template",
Subject = "This is an example email.",
IsPersonal = false,
TemplateTypeCode = "lead",
//1033 is the code for US English - you may need to change this value
//depending on your locale.
LanguageCode = 1033
};
_emailTemplateId = _serviceProxy.Create(emailTemplate);
for (int i = 0; i < 3; i++ )
{
ActivityMimeAttachment attachment = new ActivityMimeAttachment
{
Subject = String.Format("Attachment {0}",i),
FileName = String.Format("ExampleAttachment{0}.txt", i),
Body = "Some Text",
ObjectId = new EntityReference(Template.EntityLogicalName, _emailTemplateId),
ObjectTypeCode = Template.EntityLogicalName
};
_templateAttachmentIds.Add(_serviceProxy.Create(attachment));
}
Console.WriteLine("An email template and {0} attachments were created.", _templateAttachmentIds.Count);
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)
{
foreach(Guid attachmentId in _templateAttachmentIds)
{
_serviceProxy.Delete(ActivityMimeAttachment.EntityLogicalName, attachmentId);
}
_serviceProxy.Delete(Template.EntityLogicalName, _emailTemplateId);
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();
GetEmailTemplateAttachments app = new GetEmailTemplateAttachments();
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
}
}
另请参阅
IOrganizationService
电子邮件附件
模板（电子邮件模板）实体消息和方法
帮助程序代码：ServerConnection 类
计划和约会实体的示例代码
示例：将传真转换为任务
Microsoft Dynamics 365
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