Setting selected value of what if parameter with code

[cherylyu]

Hi all,

I am using a "what if" parameter. User can enter a wide range of values. But the reasonable range depends on other slicers. To help user enter meaningful numbers, I'd like to reset the selected value each time other slicers are chagned. For example, in the below situation, I know a good starting number is 3745. I just need a way (a command) to place the number 3745 into the what if parameter box. Is this doable?

[Wimverh · Accepted solution]

It's possible to use a measure, as the default value, but it won't be represented in the marked box. 
So you would need to put a card visual on top of the box, to show your value. 

For resetting the value, after you change a slicer, I don't think it's possible. 

You could use a bookmark, and then add a button to your report to reset the value.

Sample measure for changing default (you have this already, this is your suggested value:

MyDefaultValue = if(HASONEVALUE(Customer[CustomerGroup]),SWITCH(min(Customer[CustomerGroup]),"G01",15,"G02",30,20),29)

 Parameter Value (the last part, is where you add your default value, so the measure on top)

Parameter Value = SELECTEDVALUE('Parameter'[Parameter], [MyDefaultValue])

Sample file: https://dataploration.be/forumpost/WhatIfSample.pbix