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POHow to handle square brackets in correlation handle of Receive activity in windows workflow
 

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  1. POHow to handle square brackets in correlation handle of Receive activity in windows workflow
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    <p>I have a windows workflow that has a Receive activity that correlates on two string variables, x and y, where it's possible that y may be enclosed in square brackets, e.g. "[some data]". When y is enclosed in square brackets, I notice two interesting things:</p> <ol> <li><p>When the workflow is serialized, the reference to y becomes "%[some data]". That is, a percent is inserted before the square bracket.</p></li> <li><p>I am unable to meet the correlation condition. I have tried "[some data]", "%[some data]", "<code>[some data</code>] - but nothing seems to work.</p></li> </ol> <p>Is there some advice on both how to handle the situation where a correlation variable may contain square brackets? Is there anything I can do with my existing workflows so that they can meet the correlation condition?</p> <p><strong>Edit</strong></p> <p>My specific issue, I realize, is with the correlation. I am creating my workflow service programmatically and the Receive activity looks something like:</p> <pre><code>var receiveRequest = new Receive { DisplayName = "Receive", OperationName = "DoIt", CanCreateInstance = true, ServiceContractName = "MyService", SerializerOption = SerializerOption.DataContractSerializer, Content = receiveParameters, CorrelatesOn = new MessageQuerySet { { "x", new XPathMessageQuery("sm:body()/foo:DoIt/foo:x", myNamespaceManager) }, { "y", new XPathMessageQuery("sm:body()/foo:DoIt/foo:y", myNamespaceManager) }, }, CorrelatesWith = actionCorrelationHandle, CorrelationInitializers = { new RequestReplyCorrelationInitializer { CorrelationHandle = requestReplyHandleVariable } } }; </code></pre> <p>The above works fine, unless y contains right square bracket "]".</p> <p>Thanks, Eric</p>
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