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how to create a drop down on a new table with the options of a specific column in another table appearing as the choice list in the new table?
There are many methods to bulk update a table with relationship columns, but the one which I think is the most mature is through Dynamics.
Canvas App method
Create a temporary single line text column which holds the relationship value and run the import. After the import is complete, create the Lookup column which is going to be the actual relationship column (if that column does not exist already). Then in a Canvas app, use Collections and a Patch function to update up to 2000 records using the temporary text column as a reference.
GUID method
If you can identify what the GUID is for each related item, you can paste the GUID into the data import and the relationship column will update. I put together a post about this for user names for example here:
Dynamics 365 method (best)
I will put a blog post on the basic steps when I have a moment later this week but the below instructions work:
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Hi @developer_1,
You can prepare the data in Excel and then import it back into Dataverse. Here's more info to import from Excel/CSV: https://learn.microsoft.com/power-apps/maker/data-platform/data-platform-import-export?WT.mc_id=DX-MVP-5004271
Alternately, you can leverage the Power Apps Add-in in Excel and bulk update your data: https://appsource.microsoft.com/en-us/product/office/WA104380330?corrid=02a1f9a4-7dbc-4bcf-6b9d-34589068f729&src=office&exp=kyyw
Hope this helps!
i have a large table, i already have the data needed to connect, i actually had to move the column to connect both tables to the primary column of the parent table. However it created a lookup column (empty) to lookup to the parent table primary column. it seems i have to manually type in the lookup values to match the rows because i have more than 4000 rows of data in the child table. How can i copy and paste on that lookup column. i just can't do the manual inputting 😥
i have a large table, i already have the data needed to connect, i actually had to move the column to connect both tables to the primary column of the parent table. However it created a lookup column (empty) to lookup to the parent table primary column. it seems i have to manually type in the lookup values to match the rows because i have more than 4000 rows of data in the child table. How can i copy and paste on that lookup column. i just can't do the manual inputting 😥
Hey @developer_1,
Unfortunately like @Amik said, cascading choices/optionsets are not supported out-of-the-box. You would need JavaScript to achieve this and here's a little trick:
Hope this helps!
Hi @developer_1 ,
Does not work that way. A Lookup column will only return the Primary Name column (and GUID) associated to the Table being referenced. You can create a relationship between both tables and then leverage that relationship to display the column you need in a Canvas App or Model Driven App, but I suspect this is not what you're trying to do.
Suggest you create a Global Choices column, and then create a Choice column for both tables linked to the Global Choices.
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