dynamic conditional formatting based on dropdown - excel

Question

I have 7 Columns, 5 with data and the first two with names. Is there a formula I can use in conditional formatting where if I change my column from the drop-down, conditional formatting will look in that column and highlight the name with less than 25, and when i change the value of Capture, the purple highlight across the columns changes too?
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Hope it makes sense

Answer 1

Suppose you have the following named ranges:
Capture being the column number that you want to change dynamically;
ListFOR being the list of names you have in the FOR column;
RngData being the values in your table excluding the first column and column headers.
I will use the following example to demonstrate my answer:
To highlight a specific column by changing Capture value:
Highlight range B3:G10 (which is the 6 columns including headers on the right) with cell B3 being the active cell;
Use the following formula as the Formatting Rule in conditional formatting and set the background color as desired:
=COLUMN(A$1)=Capture
The logic is to compare the value returned by COLUMN function with the Capture value, if they are the same i.e. TRUE, apply the conditional format.
To highlight a specific name or names with value less than 25 in the highlighted column from previous step:
Highlight range A4:A10 (which is the first column without header) with cell A4 being the active cell;
Use the following formula as the Formatting Rule in conditional formatting and set the background color as desired:
=INDEX(RngData<25,MATCH($A4,ListFOR,0),Capture)
The logic is to first convert the values into TRUE or FALSE by comparing them with 25, then use INDEX+MATCH function to return the logical result based on the given name, if TRUE apply the conditional format.
Here is a live demo:
Let me know if you have any questions. Cheers :)