How to keep selectedvalue static or max

[tasmiaa]

I am trying to create a DAX measure called Selected Date that displays the maximum selected date and keeps it static. This means that if Nov 2017 is selected, I want the Selected Date column to show 11/1/2017 next to every month. I'd ideally like to use the 2nd type of slicer (shown below).

My current measure is Selected Date = SELECTEDVALUE('Date'[Month]).

I do not want the Selected Date to change if it is sliced by a Month in a table. How can I do this?

[tasmiaa · Accepted solution]

To answer my own question, the DAX query would be:

Selected Date = MAXX(ALLSELECTED('Date'[Month]),'Date'[Month])