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gj-bizguy's avatar
gj-bizguy
Frequent Visitor
4 years ago

How to Perform Power Query (M) Drill down on all Rows

Hello - I have been working on a 3rd party connector that returns a Jobs table in the query editor. In the Jobs table, there is a column called [Accounts] which in the query editor view only contains...
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gj-bizguy's avatar
gj-bizguy
Frequent Visitor
4 years ago

I have found that using the Function.Invoke clause, I was able to get a list of errors. Does anybody know how to solve the blow error that is resulting from the Applied Step = Table.AddColumn(table,"newcol", each Function.Invoke(each [ID],[Accounts]))?

 

The error is "Expression.Error: Cannot convert the value "Dixon Projects" to type List." The thing is, i just want the returned value to be "Dixon Projects" in the specific record for [newcol]. Each error recognizes the string text specifically that I want returned in that row.

How can this last step be done?

 

 

v-yingjl's avatar
v-yingjl
Community Support
4 years ago

Hi gj-bizguy ,

Please see the parameters explaination of Function.Invoke():

Function.Invoke( function as function, args as list) as any

The second parameter requires a list parameter while you have used a column in it so it would remind the convertion error.

 

In addition, you have said that [ID] is a function type, perhaps you can consider sharing a sample query about it and the expected output.

 

Sample data and expected output would help tremendously.
Please see this post regarding How to Get Your Question Answered Quickly:
https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

 

Best Regards,
Community Support Team _ Yingjie Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.