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Virtual Entity - Parent/Child with Integer as Identity not working

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Posted on by 593
(Crossposting from Dynamics Community : Virtual Entity - Parent/Child with Integer as Identity not working (dynamics.com))
 
I have successfully created the a Virtual Table for the entity "DevOps Work Item", using a Odata V4 Data provider.
 
Now I am trying to incorporate the "Parent Work Item" concept.
The datasource structure is as following (only the relevant part):
 
[
    {
        "WorkItemId": 426,
        "ParentWorkItemId": null
    },
    {
        "WorkItemId": 427,
        "ParentWorkItemId": 426
    }
]
 
As you can see, the WorkItem ID is an integer. However, in the virtual table that ID is somehow converted to a GUID ( 426 = 1aa, 427 = 1ab)
 
 
When I try to add a LookUp field to the same table, using the external name "ParentWorkItemId" , and try to fetch the data, I get the error:
 
Type mismatch of the external attribute of type System.Nullable`1[System.Int32] expected a 'System.Nullable`1[[System.Guid, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]' value.
 
I understand that the system receives an Integer and that it cannot match it with the GUID that it expects on the "parent". But this leaves me with the question: How can I link these parent/child, either using both the INTEGER value, or both using the GUID value? Or is there another way to get around this?
 
Best regards,
Koen
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  • Shashank Bhide Profile Picture
    Shashank Bhide 932 on at
    Virtual Entity - Parent/Child with Integer as Identity not working
    ADO workitems are based on integer primary keys, however Dataverse tables MUST have GUID primary keys, so possibly you need to modify the ADO template and include a GUID field and find a way to automatically add a new GUID to that and use that as an alternate key IMO. 
     

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