topic Re: Create a table containing the unique values of a user-sliced subset in DAX Commands and Tips

Create a table containing the unique values of a user-sliced subset

Cheetah — Thu, 15 Sep 2022 20:32:47 GMT

I'm new in DAX and PowerBI, just run into a "simple" problem, hope someone give me a hint.

The problem is like this: we have a data table behind a PowerBI report, its column "A" is of interest, and the report has several slicers work on that table.

The target is:

1. Firstly, to create an one-column dynamic table that contains the unique values of the sliced subset of the column "A" of the data table. After each time user makes his selection on the slicers, the table is automatically updated to refelct the new subsetting of the column "A".

2. secondly, to add a column to this dynamic table that contains the sequential numbers of the rows, i.e. 1, 2,..., N, with N the total number of rows.

Thank you!

Cheetah

Re: Create a table containing the unique values of a user-sliced subset

Greg_Deckler — Fri, 16 Sep 2022 01:28:13 GMT

Cheetah Not sure I 100% understand, but try this:

Measure = VAR __Values = DISTINCT('Table'[A]) // whatever the user selects for A column, unique values VAR __Text = CONCATENATEX(__Values,[A],"|") VAR __Count = COUNTROWS(__Values) VAR __Table = ADDCOLUMNS( GENERATESERIES(1,__Count,1), "A",PATHITEM(__Text,[Value]) ) // do something with this dynamic table. You now have a dynamic indexed table where the index is the [Value] column and your A values are in the A column.

Re: Create a table containing the unique values of a user-sliced subset

Anonymous — Fri, 16 Sep 2022 01:32:17 GMT

Hi Cheetah ,

In order to better understand your demands and give the right solution, could you please provide some more specific information? such as your desensitized example data and a screenshot of your desired results?

Thanks for your efforts & time in advance.

Best regards,
Community Support Team_ Binbin Yu

Re: Create a table containing the unique values of a user-sliced subset

tamerj1 — Fri, 16 Sep 2022 05:27:28 GMT

Hi Cheetah
Attached sample file considering the brand column as an example. It should work on any column and any set of slicers.

You need to place the column in a table visual along with the following measure

No. = RANKX ( CALCULATETABLE ( VALUES ( 'Product'[Brand] ), ALLSELECTED ( ) ), CALCULATE ( MAX ( 'Product'[Brand] ) ),, ASC, Dense )

Re: Create a table containing the unique values of a user-sliced subset

Cheetah — Sat, 17 Sep 2022 07:32:10 GMT

Hi tamerj1 , thank you for the reply. Your images looks the very thing I want, but
the code is generating a number rather than a table, maybe you missed to post another section of code?
Cheetah

Re: Create a table containing the unique values of a user-sliced subset

Cheetah — Sat, 17 Sep 2022 07:35:23 GMT

HI Greg_Deckler , thank you for the reply. I tried the code, it gives this error message: "The syntax for ')' is incorrect."
Should I add a "return" line to the end of the code?

Re: Create a table containing the unique values of a user-sliced subset

tamerj1 — Sat, 17 Sep 2022 07:55:56 GMT

Cheetah
Indeed it is generating a number. Which you need to place it along with the desired column in one table visual. Please download the attached file and see how it works.

Re: Create a table containing the unique values of a user-sliced subset

Greg_Deckler — Sat, 17 Sep 2022 18:51:22 GMT

Cheetah Yeah, I have no idea what you want to do with that table VAR so that is just a code snippet, not a complete measure.

Re: Create a table containing the unique values of a user-sliced subset

Cheetah — Tue, 27 Sep 2022 08:38:24 GMT

Thank you tamerj1 ! great solution.

Re: Create a table containing the unique values of a user-sliced subset

Cheetah — Tue, 27 Sep 2022 08:44:08 GMT

Hi Anonymous , thank you for the advice, and sorry for the missing informations. I got the problem solved. Thank you all as a great Community Support Team!