Hi Yavor,
It worked fine, but now I have two issues.

  1. I tried to get date from datePicker. Because I got a timestamp (may I got exactly  format: MM/dd/yyyy?), I tried to format it, but I got current date. I checked on smart-date-time-picker and I found that I have date+time even if I select a date (without time). Maybe here is the issue.
  2. I add a checkbox. When I unselect, it remain blue color until I move to another input.