Dynamically Set Field Parameter Selection

[Anonymous]

Hi - First time caller, long-time listener here! 

1. I have created a field parameter to dynamically select the field represented as the x-axis in a bar graph. 
2. Next, I have created a slicer to toggle through the different options within the field parameter.

Question: Now, I am looking to dynamically select a value within the slicer based on a variable within my dashboard. Example: if Sales Amount>1M, select parameter A, otherwise select parameter B.

Can someone please assist?

[amitchandak]

@Anonymous , I doubt you can change the value like that. It need to be column like

if([Sales] >100000000, [Column 1], [Column2])

So it would be static