启用持久性时，WF4 中的多个接收活动失败
我有一个具有多个接收功能的 WF4 工作流程。
工作流程运行良好，直到我添加持久性。我创建了持久性表，并将以下内容添加到 web.config 的 \configuration\system.serviceModel\behaviors\serviceBehaviors 部分：
<behavior>
<!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
<serviceMetadata httpGetEnabled="true" />
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="true" />
<sqlWorkflowInstanceStore connectionStringName="InstanceStore"
instanceCompletionAction="DeleteAll"
instanceLockedExceptionAction= "NoRetry"
instanceEncodingOption="None"
hostLockRenewalPeriod="00:01:00"
/>
</behavior>
工作流接受一个参数，该参数是我定义的 WorkflowInstanceDTO POCO 的实例。
当我使用以下代码运行工作流程时，
var wfi = new WFService.WorkflowInstanceDTO()
{
Id = 1,
InstanceId = new Guid(),
Description = "Awesome WFI",
WorkflowId = 1
};
proxy.Create(wfi);
它在 proxy.Create 行上失败，并出现以下错误。
实例键值为“11e5cf14-c2a8-0fbf-d3b5-c12a91c174ff” 已经存在。这可能是因为有多个 MessageQuerySets 定义为相同的 CorrelationKey。
当未启用持久性时，我不会收到此错误。有人见过这个吗？我做错了什么？
I have a WF4 workflow with multiple receive functions.
The workflow runs fine until I add persistence. I created the persistence tables and added the following to the \configuration\system.serviceModel\behaviors\serviceBehaviors section of my web.config:
<behavior>
<!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
<serviceMetadata httpGetEnabled="true" />
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="true" />
<sqlWorkflowInstanceStore connectionStringName="InstanceStore"
instanceCompletionAction="DeleteAll"
instanceLockedExceptionAction= "NoRetry"
instanceEncodingOption="None"
hostLockRenewalPeriod="00:01:00"
/>
</behavior>
The workflow accepts a parameter that is an instance of a WorkflowInstanceDTO POCO I have defined.
When I run the workflow with the following code
var wfi = new WFService.WorkflowInstanceDTO()
{
Id = 1,
InstanceId = new Guid(),
Description = "Awesome WFI",
WorkflowId = 1
};
proxy.Create(wfi);
It fails on the proxy.Create line with the following error.
An instance key of value '11e5cf14-c2a8-0fbf-d3b5-c12a91c174ff'
already exists. This could be because there are multiple
MessageQuerySets defined that evaluate to the same CorrelationKey.
When persistence is not enabled, I do not get this error. Has anyone seen this? What am I doing wrong?
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您是否初始化关联并且您的接收活动是否在同一密钥上关联？如果您还没有阅读过基于内容的相关性，您将会想要阅读。
添加 CorrelationHandle 类型的名为“sharedHandle”的工作流变量，并在 Create 调用中使用“查询相关初始值设定项”初始化“sharedHandle”。该属性是所有接收调用都会接受的参数。
Do you initialize correlation and do your receive activities correlate on the same key? You're going to want to read about content-based correlation if you haven't already.
Add a workflow variable called "sharedHandle" of type CorrelationHandle and on your Create call, initialize "sharedHandle" with a "Query correlation initializer". The property would something that all receive calls would accept as an argument.