concatenate multiple columns null value, remove commas, DAX

[anonymous111]

Hello everyone, 

I tried to combine 6 columns using :

Column name= 'DataSource'[Column 1]&", "&'DataSource'[Column 2]'&", "&DataSource'[Column 3]&", "& 'DataSource'[Column 4]&", "&'DataSource'[Column 5]&", "&'DataSource'[Column 6]

Some of the column are empty/null so as a result I am getting are:

text,,,,,

text1,text2,,,,

text1,text2,text4,,,

Basically the null value from any column ends up as extra comma at the end.

How can I remove that comma from the end?

Thanks!

[Ritaf1983]

Hi @anonymous111 
This is easier to resolve from PQ .
You need just 3 steps :

1. Merge columns:

2. replace 
'' with '

3. extract text from the first comma:

extract the the text before last comma

pbix is attached

If this post helps, then please consider Accepting it as the solution to help the other members find it more quickly.

[anonymous111]

Thank you for the screenshot, but data source I am working on, it doesn't allow me to access pq. 

[Ritaf1983]

Hi @anonymous111 
You can use this DAX:

merged =

var

concantenated = [Column1]&","&[Column2]&","&[Column3]&","&[Column4]&","&[Column5]&","&[Column6]

var

replace_caommas=

SUBSTITUTE(concantenated,",,",",")

var

replace_caommas_repeat=

SUBSTITUTE(replace_caommas,",,",",")

var

remove_comma_first_Char =if(LEFT(replace_caommas_repeat,1)=",",

REPLACE(replace_caommas_repeat,1,1,""),replace_caommas_repeat)

RETURN

remove_comma_first_Char

The updated pbix is attached

If this post helps, then please consider Accepting it as the solution to help the other members find it more quickly.

[anonymous111]

Didn't work-doesn't show any error as well; no changes, is it something to do with string function? trimend function doesn't show up as well.