我开始工作了，我在这里修改了工作代码。希望它有所帮助!!
我正在创建一个工作流程，其中包含一个插件，用于从电子邮件记录的“FROM”字段中检索联系人实体。我正在尝试查看联系人实体中是否存在该电子邮件。输入是“FROM”电子邮件，输出将返回Contacts实体。我无法使这段代码正常工作，我收到了不同的错误或没有错误，但我知道它不起作用。请帮忙！提前谢谢！
using System.Activities;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Workflow;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Messages;
using System;
namespace GetSenderPlugin
{
public class GetSenderPlugin : CodeActivity
{
protected override void Execute(CodeActivityContext executionContext)
{
//Create the tracing service
ITracingService trace = executionContext.GetExtension<ITracingService>();
trace.Trace("*****Tracing Initiated*****");
//Create the IWorkflowContext and the IOrganizationService for communication with CRM
IWorkflowContext context = executionContext.GetExtension<IWorkflowContext>();
IOrganizationServiceFactory serviceFactory = executionContext.GetExtension<IOrganizationServiceFactory>();
IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);
trace.Trace("*****IOrganizationService created*****");
trace.Trace("*****Entity logical Name: " + Email.Get<EntityReference>(executionContext).LogicalName + "*****");
trace.Trace("*****Entity ID: " + Email.Get<EntityReference>(executionContext).Id + "*****");
if (Email != null && string.Compare(Email.Get<EntityReference>(executionContext).LogicalName, "email", false) == 0)
{
EntityReference retrieveEmail = new EntityReference();
retrieveEmail.Id = Email.Get<EntityReference>(executionContext).Id;
retrieveEmail.LogicalName = Email.Get<EntityReference>(executionContext).LogicalName;
retrieveEmail.Name = Email.Get<EntityReference>(executionContext).Name;
string[] strArrays = new string[1];
strArrays[0] = "from";
ColumnSet columnSet = new ColumnSet();
columnSet.AddColumn(strArrays[0]);
RetrieveRequest retrieveRequest = new RetrieveRequest();
retrieveRequest.Target = retrieveEmail;
retrieveRequest.ColumnSet = columnSet;
trace.Trace("*****Retrieve Request declared*****");
RetrieveResponse retrieveResponse = (RetrieveResponse)service.Execute(retrieveRequest);
trace.Trace("*****Retrieve Response executed*****");
Email businessEntity = (Email)retrieveResponse.Entity;
trace.Trace("*****businessEnitity retrieved*****");
//ActivityParty activitypartyArray = (ActivityParty)businessEntity.From.FirstOrDefault;
foreach (ActivityParty activityParty in businessEntity.From)
{
trace.Trace("*****Activity Party Name: " + activityParty.PartyId.LogicalName + "*****");
trace.Trace("*****Activity Party Id: " + activityParty.PartyId.Id + "*****");
if (activityParty != null && activityParty != null && activityParty.PartyId != null)
{
string str = activityParty.PartyId.LogicalName;
if (str.CompareTo("contact") != 0)
{
trace.Trace("*****Not Contact*****");
if (str.CompareTo("account") != 0)
{
trace.Trace("*****Not Account*****");
if (str.CompareTo("lead") != 0)
{
trace.Trace("*****Not Lead*****");
if (str.CompareTo("systemuser") != 0)
{
trace.Trace("*****Not System User*****");
if (str.CompareTo("queue") == 0)
{
Queue.Set(executionContext, activityParty.PartyId);
Contact.Set(executionContext, new EntityReference("contact", Guid.NewGuid()));
User.Set(executionContext, new EntityReference("systemuser", Guid.NewGuid()));
Lead.Set(executionContext, new EntityReference("lead", Guid.NewGuid()));
Account.Set(executionContext, new EntityReference("account", Guid.NewGuid()));
}
else
{
trace.Trace("*****User not found*****");
Queue.Set(executionContext, new EntityReference("queue", Guid.NewGuid()));
Contact.Set(executionContext, new EntityReference("contact", Guid.NewGuid()));
User.Set(executionContext, new EntityReference("systemuser", Guid.NewGuid()));
Lead.Set(executionContext, new EntityReference("lead", Guid.NewGuid()));
Account.Set(executionContext, new EntityReference("account", Guid.NewGuid()));
}
}
else
{
User.Set(executionContext, activityParty.PartyId);
Contact.Set(executionContext, new EntityReference("contact", Guid.NewGuid()));
Queue.Set(executionContext, new EntityReference("queue", Guid.NewGuid()));
Lead.Set(executionContext, new EntityReference("lead", Guid.NewGuid()));
Account.Set(executionContext, new EntityReference("account", Guid.NewGuid()));
}
}
else
{
Lead.Set(executionContext, activityParty.PartyId);
Contact.Set(executionContext, new EntityReference("contact", Guid.NewGuid()));
Queue.Set(executionContext, new EntityReference("queue", Guid.NewGuid()));
User.Set(executionContext, new EntityReference("systemuser", Guid.NewGuid()));
Account.Set(executionContext, new EntityReference("account", Guid.NewGuid()));
}
}
else
{
Account.Set(executionContext, activityParty.PartyId);
Contact.Set(executionContext, new EntityReference("contact", Guid.NewGuid()));
Queue.Set(executionContext, new EntityReference("queue", Guid.NewGuid()));
User.Set(executionContext, new EntityReference("systemuser", Guid.NewGuid()));
Lead.Set(executionContext, new EntityReference("lead", Guid.NewGuid()));
}
}
else
{
trace.Trace("*****Contact assigned*****");
Contact.Set(executionContext, activityParty.PartyId);
Queue.Set(executionContext, new EntityReference("queue", Guid.NewGuid()));
User.Set(executionContext, new EntityReference("systemuser", Guid.NewGuid()));
Lead.Set(executionContext, new EntityReference("lead", Guid.NewGuid()));
Account.Set(executionContext, new EntityReference("account", Guid.NewGuid()));
}
}
break;
}
}
else
{
trace.Trace("*****Email is null*****");
Queue.Set(executionContext, new EntityReference("queue", Guid.NewGuid()));
Contact.Set(executionContext, new EntityReference("contact", Guid.NewGuid()));
User.Set(executionContext, new EntityReference("systemuser", Guid.NewGuid()));
Lead.Set(executionContext, new EntityReference("lead", Guid.NewGuid()));
Account.Set(executionContext, new EntityReference("account", Guid.NewGuid()));
}
}
#region Properties
[Input("E-mail")]
[ReferenceTarget("email")]
public InArgument<EntityReference> Email { get; set; }
[Output("Account")]
[ReferenceTarget("account")]
public OutArgument<EntityReference> Account { get; set; }
[Output("Contact")]
[ReferenceTarget("contact")]
public OutArgument<EntityReference> Contact { get; set; }
[Output("Lead")]
[ReferenceTarget("lead")]
public OutArgument<EntityReference> Lead { get; set; }
[Output("Queue")]
[ReferenceTarget("queue")]
public OutArgument<EntityReference> Queue { get; set; }
[Output("User")]
[ReferenceTarget("systemuser")]
public OutArgument<EntityReference> User { get; set; }
#endregion
}
}
因此，我们将内部CRM系统从4.0升级到2011年，这是一个工作流程中的插件。我没有原始的源代码，所以我真的不知道代码在做什么。但是在导出解决方案后，我反编译了原始的.dll文件。我试图重写CRM 2011的代码，这就是我所拥有的。在我测试了工作流程之后，我得到错误说：“预期的非空Guid。”代码转到循环后的最后一行然后给我错误。这是跟踪：
Workflow paused due to error: Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: Expected non-empty Guid.Detail:
<OrganizationServiceFault xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.microsoft.com/xrm/2011/Contracts">
<ErrorCode>-2147220989</ErrorCode>
<ErrorDetails xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic" />
<Message>Expected non-empty Guid.</Message>
<Timestamp>2013-02-21T23:46:37.0376093Z</Timestamp>
<InnerFault>
<ErrorCode>-2147220970</ErrorCode>
<ErrorDetails xmlns:d3p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic" />
<Message>System.ArgumentException: Expected non-empty Guid.
Parameter name: id</Message>
<Timestamp>2013-02-21T23:46:37.0376093Z</Timestamp>
<InnerFault i:nil="true" />
<TraceText i:nil="true" />
</InnerFault>
<TraceText>[Microsoft.Xrm.Sdk.Workflow: Microsoft.Xrm.Sdk.Workflow.Activities.RetrieveEntity]
[RetrieveEntity]
*****Tracing Initiated*****
*****IOrganizationService created*****
*****Entity logical Name: email*****
*****Entity ID: c49e4c7c-8724-de11-86ce-000c290f83d7*****
*****Retrieve Request declared*****
*****Retrieve Response executed*****
*****businessEnitity retrieved*****
*****Activity Party Name: contact*****
*****Activity Party Id: 79ed3a33-8eb9-dc11-8edd-00c09f226ebb*****
*****Activity Party not null*****
*****Contact assigned*****
*****foreach ended*****</TraceText>
</OrganizationServiceFault>
at Microsoft.Crm.Extensibility.OrganizationSdkServiceInternal.Retrieve(String entityName, Guid id, ColumnSet columnSet, CorrelationToken correlationToken, CallerOriginToken callerOriginToken, WebServiceType serviceType)
at Microsoft.Crm.Extensibility.InprocessServiceProxy.RetrieveCore(String entityName, Guid id, ColumnSet columnSet)
at Microsoft.Xrm.Sdk.Client.OrganizationServiceProxy.Retrieve(String entityName, Guid id, ColumnSet columnSet)
at Microsoft.Crm.Workflow.Services.RetrieveActivityService.<>c__DisplayClass1.<RetrieveInternal>b__0(IOrganizationService sdkService)
at Microsoft.Crm.Workflow.Services.ActivityServiceBase.ExecuteInTransactedContext(ActivityDelegate activityDelegate)
at Microsoft.Crm.Workflow.Services.RetrieveActivityService.ExecuteInternal(ActivityContext executionContext, RetrieveEntity retrieveEntity)
at Microsoft.Crm.Workflow.Services.RetrieveActivityService.Execute(ActivityContext executionContext, RetrieveEntity retrieveEntity)
at System.Activities.CodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager)
at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)
答案 0 :(得分：3)
我收到了不同的错误或没有错误，但我知道它不起作用
首先，我建议您列出问题中的错误。回答你并避免-1s会容易得多。 :)其次，在工作流程中使用跟踪服务。
ITracingService tracingService = context.GetExtension<ITracingService>();
tracingService.Trace("I'm tracing something....");
如果找不到指定电子邮件的联系会怎样？你必须处理这个案子。可能它在这里失败了。发布错误日志，检查一下。
答案 1 :(得分：2)
如果我要给出一个嘻哈的答案，我猜这是问题是你在某些情况下没有得到匹配并过滤掉所有内容。然后，你在某处得到 null （或尝试引用一个空 guid，或者尝试选择一个尚未输入的属性，这样，虽然已定义，但它是不服务）。
你得到了什么确切的错误？你什么时候得到它们什么时候不能得到它们？
此外，我注意到的代码存在一些问题（不是解决方案，但仍有待改进）。
名字中的错字。我想你想要 ContactReference 。
[Output("output")]
[ReferenceTarget("contact")]
public OutArgument<EntityReference> ContactRefernce { get; set; }
我以不同的方式设计查询。由于您知道要匹配的地址，因此您可能希望精确地过滤该地址。此外，您似乎只需要基于电子邮件的匹配guid所以您只需要获取它。
private Guid MatchSenderWithExistingContact(
IOrganizationService service, String fromAddress)
{
QueryExpression query = new QueryExpression
{
EntityName = "contact",
ColumnSet = new ColumnSet("emailaddress1"),
Criteria = new FilterExpression
{
Filters =
{
new FilterExpression
{
Conditions =
{
new ConditionExpression(
"emailaddress1", ConditionOperator.Equal, fromAddress)
}
}
}
}
};
EntityCollection retrieveMultipleRequest = service.RetrieveMultiple(query);
IEnumerable<Entity> entities = retrieveMultipleRequest.Entities;
return entities.FirstOrDefault().Id;
}
您可能希望将查询声明放在逐步语法上。我更喜欢这种方式，因为它在创建高级查询时更方便。但是，当您迭代并使用 break 时，该部分肯定会更好，如上所示。
快乐的编码！
您可能有理由使用跟踪。通常，我将跟踪对象声明为插件类中的成员变量，然后在每次操作时写入它。这样，至少我知道哪里粪便击中AC并且可以在此之前记录变量的值。
private ITracingService trace;
public void Execute(IServiceProvider serviceProvider)
{
trace = (ITracingService)serviceProvider.GetService(typeof(ITracingService));
_trace.Trace("Tracing successful!");
throw new Exception("Intentional! Nice.");
}
请记住，除非发生未捕获的异常，否则不会显示跟踪。事实上，我偶尔会为了查看变量中的内容而有意破坏执行。所以请记住，如果你有一个全局 try-catch ，你需要手动重新抛出异常。
此方法的优点是您可以跟踪内部部署和联机。它适用于除异步之外的所有插件注册。也有解决办法，但这不是你问题的主题，我已经离题了。