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Power Platform Community / Forums / Power Apps / how to map dropdown va...
Power Apps
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how to map dropdown values

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Posted on by 834

Hi all,

I have two SQL tables where

1, customers, contains list of customer and the shortcut of the country they are located, US, GB, BE, NO...

2, countries, contais list of country codes and full names (GB = Great Britain, etc...)

 

i need to create a dropdown which will filter the 1st list based on text input and provide selection of countries based on the second list...  i manged it following way: 

 

Filter('Countries', CountryCode in Filter(Customers, TextInput2.Text in 'Customer Name').'Country_Code').CountryName

 

but i get tha delegation warning because of the first in. (MS: The in (substring) operator. Supported for ("string value" in \<column>), but not for (\<column> in "string value").)

I suspect that it should not be a problem because the list is filtered already by all the other filters... but still, is there a better way to do?

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  • Verified answer
    Scott_Parker Profile Picture
    1,090 on at

    Power Apps doesn't do delegation of joins. You could do it in your backend: https://powerapps.microsoft.com/en-us/blog/using-sql-server-views-in-powerapps/ 

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