Forum Discussion
HASONEVALUE help
Hi Experts I am using the following dax formula to find the value in column b based on the filter selection in column A. When i have mulitple values in column B it returns bank, i want to return ...
Use FIRSTNONBLANK instead of VALUES.
Cup_h_prmry = if(HASONEVALUE(njrew_h_prmry_outcm[CUPCATNO]),FIRSTNONBLANK(njrew_h_prmry_outcm[CUPDETAILS]),"")
VALUES returns a column of values, which can't be displayed as a single data point. Using FIRSTNONBLANK gets the first value, depending on the current order of the data.
If you're expecting all of the CUPDETAILS values to be the same within the same CUPCATNO, I would use SELECTEDVALUE instead. This way it doesn't just pick a value randomly based on whatever ordering currently happens to be in place.
Cup_h_prmry = SELECTEDVALUE(njrew_h_prmry_outcm[CUPDETAILS], BLANK())
You can also use MAX, MIN, or any other aggregation function to determine which value to pick out of the list.
Apologies..
Column A =
njrew_h_prmry_outcm[CUPCATNO]) and
Column B =
njrew_h_prmry_outcm[CUPDETAILS]
To return the first value, you can use
TOPN( 1, VALUES(njrew_h_prmry_outcm[CUPDETAILS]), 1234)
Note the last argument (1234) is where you would normally put your ordering expression. Here, I just chose an arbitrary constant value.