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Dynamics 365 Community / Forums / Microsoft Dynamics CRM (Archived) / How to retrieve Guid o...
Microsoft Dynamics CRM (Archived)

How to retrieve Guid of a link-entity?

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Posted on by Community Member

I've coded a method to query a queue's (related)mailbox state. In order to do that I need to pass down the queue's related mailbox Guid - "mailboxid". The mailbox in this case is a link-entity.

At the moment I can get the Guid of that queue easily using the below cast. But I'm wondering how I can retrieve the Guid of the queue's mailbox.

Question:

How can I retrieve/cast the Guid of a link entity?

Sample cast on queue Guid:

int selectedIndexQueue = unenabledMailboxQueueListBox.SelectedIndex;
Entity selectedQueue = UnenabledMailBoxQueueStringList[selectedIndexQueue];
Guid selectedQueueGuid = (Guid)selectedQueueMailbox.Attributes["queueid"];

FetchXML (detailing the query on related unenabled mailboxes of queues):

 

<?xml version="1.0"?>

-<fetch distinct="false" mapping="logical" output-format="xml-platform" version="1.0">


-<entity name="queue">

<attribute name="name"/>

<attribute name="emailaddress"/>

<attribute name="queueid"/>

<order descending="false" attribute="name"/>


-<link-entity name="mailbox" alias="ab" to="defaultmailbox" from="mailboxid">


-<filter type="and">




<condition attribute="statecode" value="1" operator="eq"/>

</filter>

</link-entity>

</entity>

</fetch>



 

 

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  • Verified answer
    NatrajY Profile Picture
    NatrajY 3,040 on at

    In this case it is easier to retrieve this from queue itself. Just use selectedQueueMailbox.GetAttributeValue<EntityReference>("defaultmailbox").Id, as you are using this attribute to link it to mailbox.

    If you want to still retrieve it from the link entity, add mailboxid to the retrieve columns on the link and use (Guid)selectedQueueMailbox.GetAttributeValue<AliasedValue>("ab.mailboxid").Value. You'll have to refer the attributes on the link entity prefixed with their alias, which in this case is ab.

  • Suggested answer
    Aiden Kaskela Profile Picture
    Aiden Kaskela 19,696 on at

    Hi,

    You can get back an attribute on a linked entity by including the attribure node in the link-entity section, like this:

          <link-entity name='attributemap' alias='attributemap' to='entitymapid' from='entitymapid' link-type='inner'>
         <attribute name='sourceattributename'/>
         <attribute name='targetattributename'/>
      </link-entity>


    (source: https://msdn.microsoft.com/en-us/library/gg328117.aspx)

    Hope this helps! I'd appreciate if you'd mark this as Answering your question.

    Thanks,

      Aiden

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