Measure to give day between based on relative date slicer

[Anonymous]

Hi Experts

I have a relative date Slicer as shown in the image below, I want to work out the number of days based on what has been selected in the relative date slicer. I have a DimDate table in my model

As shown above my date period is 21/07/2019 to 20/07/2021 show work out the number of days between these too dates... or based on selection

[amitchandak · Accepted solution]

@Anonymous , a measure like this

new measure =
VAR _min = MINX( allselected('Calendar') , 'Calendar'[Date] )
VAR _max = MAXX(allselected('Calendar') , 'Calendar'[Date] )
return
datediff(_min,_max,day) +1

Remove +1 if needed 

[Anonymous]

Thanks Amit let me test