polymorphic lookups

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Posted on by octaking

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I have an approval board in a gallery and I need to get the approver of each application

I think it is with the owner of the Approval request entity but I don't know how to get it, it tells me that I have to give a polymorphic lookups

can someone help me with the formula

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hnguy71 347 on at

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do you have more than one entity associated with the owner field? You'll likely need to use the functions IsType and AsType to properly display the owner field

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octaking 320 on at

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Hi @hnguy71
thanks for answering

I have a gallery that consumes a CDS entity called approvals. I want to get the Owner field, can you give me a guide please

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hnguy71 347 on at

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you're using only 1 CDS called Approvals? It shouldn't ask for a polymorphic lookup. Are you using another CDS elsewhere with the same field name?

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octaking 320 on at

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Hi @hnguy71 the owner is in an entity called users

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v-xida-msft on at

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Hi @octaking ,

Based on the needs that you mentioned, I think the AsType function and Users Entity could achieve your needs.

On your side, you need to add Users Entity as data source within your app firstly. The Screenshot as below:

Within your Gallery, set the Text property of the Label to following:

AsType(ThisItem.Owner, [@Users]).'Full Name'

or

"Owner: " & AsType(ThisItem.Owner, [@Users]).'Full Name'

Please consider take a try with above solution, check if the issue is solved.

Please check the following blog for more details about the polymorphic lookups:

https://powerapps.microsoft.com/en-us/blog/owner-customer-and-regarding-for-canvas-apps/

Best regards,

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PavanKumar 479 on at

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Hi,
This is how you can get values from polymorphic lookups.

//this example is for embedded canvas app so instead of modeldrivenformintegration use relevant name.
If(IsType( [@ModelDrivenFormIntegration].Item.’Company Name’, [@Accounts] ), AsType([@ModelDrivenFormIntegration].Item.’Company Name’, [@Accounts] ).’Account Name’, AsType( [@ModelDrivenFormIntegration].Item.’Company Name’, [@Contacts] ).’Full Name’ )
For total details please refer to the blog: https://pavankumargarlapati.wordpress.com/2019/08/06/embedded-canvas-app-how-to-get-the-selected-polymorphic-lookup-field-value/

If this answers your question please mark it as verified
Regards,
Pavan Kumar Garlapati

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Shawn Akins 4 on at

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where would we put this and what relevant name would we use instead of modeldrivenformintegration?

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