jquery - Bootstrap Modal popup not scrolling with keyboard -


i'm using bootstrap modal, added scroll bar , works fine mouse, when use keyboard background page scrolls. can solve this. css code i'm using.

.modal .modal-body { height: 520px; overflow-y: auto;  }

i tried code doesn't work 

  $('#mymodal').keydown(function(e)  {      if(e.keycode == 40){$('.modal-body').scrolltop($('.modal-body').scrolltop()+10);}     if(e.keycode == 38){$('.modal-body').scrolltop($('.modal-body').scrolltop()-10);}  });

keystrokes detected element has focus, keydown event won't trap if focus on element in background. suggest doing following:

  • making modal focusable giving tabindex=-1 attribute
  • setting have focus when opens, this: $("#my-modal").focus()

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