Calculating Quater Sum for 3 month Distinctcount result

[Anonymous]

I am using the Dax to get Monthly Distinctcount of IDs. Need Quaterly result where Quarter is selected it should give the sum of each month result derived from Dax meassure. When I directly giving as quarter it is taking Distinctcount of IDs of entire quarter.
expected Quarter result as 3+3+2=8 ,   but when I try getting the result as 3
Jan-3

Feb-3

Mar-2

IDs    Month
A1    Jan
A2    Jan
A2    Jan
A3    Jan
A1    Feb
A1    Feb
A3    Feb
A2    Feb
A2    Mar
A2    Mar
A1    Mar

Appreciate your kind help.Thanks!

Regards,
Naseef

[ryan_mayu · Accepted solution]

@Anonymous 

you can try this

Measure = 
var TBL=SUMMARIZE('Table','Table'[Month],"count",DISTINCTCOUNT('Table'[IDs]))
RETURN sumx(TBL,[count])