getting value of Page Level Filters with Dax code

Hi myti

You can retrieve the value of a slicer / page level filter / report level filter with the following measure:

Measure = If ( HasOneValue(Table[SlicerCol]) , Values (Table[SlicerCol]) )

You can then pass this value in a variable for a filter condition or apply if statements / Switch

But it only works if the user selected a single value, otherwise it returns blank.

In your particular example, you can try to pass the whole Channel table as a filter argument.

Store Sales = Calculate ( [Total Sales] , Channel )

Channel table will be evaluated in the current filter context and thus takes into account the filter(s) applied by the user.