Date-picker with multiple months does not print unavailable dates

[TheGlockZentix]

Date-picker with multiple months does not print unavailable dates.
See picture below:
https://i.imgur.com/u79v1RH.png

[pkozlowski-opensource]

Yep, looks like a bug to me - I can't even force it to explicitly display: http://plnkr.co/edit/OxbizKp0Zq02zhImem9u?p=preview

cc @maxokorokov

[bastienmoulia]

Due to [outsideDays]="(displayMonths === 1 ? outsideDays : 'hidden')" from https://github.com/ng-bootstrap/ng-bootstrap/blob/master/src/datepicker/datepicker.ts#L126.

What is the correct behavior:

1. Hide days outside of the month like actually
2. Show days outside of the month (in grey)
3. Hide days between the 2 month and show days before and after (in grey)

[pkozlowski-opensource]

Hmm, good questions @bastienmoulia ! I would say (1) or (3), but I will let @maxokorokov to decide.

[maxokorokov]

It is related to [outsideDays], true. More specifically what to do with days in between two months.

I would say all (1) and (2) depend on the outsideDays value, (3) is always correct (days in between are never visible).

Please see discussion and my comment here: #1158 (comment)

[phatvuong194]

did you fix this bug?
https://i.imgur.com/u79v1RH.png