javascript - How to scroll within an overflow hidden div to a certain currently invisible element? -

-

i have list of elements within overflow hidden div. not elements visible. now, if element gets activated, should become visible within div.

how scroll active element using jquery?

it's merely convenience last element has active class. toggled dynamically.

 var scrolltoel = $("div.element.active");   console.log(zoomtoel);
 #main,   #sidebar {     height: 200px;   }   #wrapper {     width: 190px;     float: left;     background: grey;     overflow: auto;     overflow-x: hidden;   }   #sidebar div.element {     height: 150px;     width: 150px;     background-color: green;     margin-bottom: 10px;   }   #sidebar div.element.active {     background-color: red;   }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <div id="main">    <div id="wrapper" class="sidebar">      <div id="sidebar">        <div class="element" data-slide-id="0">a        </div>        <div class="element" data-slide-id="1">b        </div>        <div class="element" data-slide-id="2">c        </div>        <div class="element" data-slide-id="3">d        </div>        <div class="element" data-slide-id="4">e        </div>        <div class="element" data-slide-id="5">f        </div>        <div class="element" data-slide-id="6">g        </div>        <div class="element active" data-slide-id="7">h        </div>      </div>    </div>  </div>

the element should become visible:

var scrolltoel = $("div.element.active");

you can set scrolltop of wrapper div top of position of active element.

$("#wrapper").scrolltop($("#wrapper").scrolltop() + $("div.element.active").position().top);

demo


Comments

Post a Comment

Popular posts from this blog

c# - SVN Error : "svnadmin: E205000: Too many arguments" -

-
i trying reposotries using c# code process svncommand = null; var psi = new processstartinfo("svnadmin"); psi.redirectstandardoutput = true; psi.redirectstandarderror = true; psi.useshellexecute = false; psi.arguments= @"dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump"; using (svncommand = process.start(psi)) { var myoutput = svncommand.standardoutput; var myerror = svncommand.standarderror; debug.write("output :" + environment.newline + environment.newline + myoutput.readtoend() + environment.newline + "error :" + environment.newline + environment.newline + myerror.readtoend()); svncommand.close(); } when use dump command commandline svnadmin dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump it works fine when try ...
Read more

c# - Copy ObservableCollection to another ObservableCollection -

-
how copy observablecollection item observablecollection without reference of first collection? here observablecollection item value changes affecting both collections. code private observablecollection<ratemodel> _allmetalrate = new observablecollection<ratemodel>(); private observablecollection<ratemodel> _metalrateondate = new observablecollection<ratemodel>(); public observablecollection<ratemodel> allmetalrate { { return this._allmetalrate; } set { this._allmetalrate = value; notifypropertychanged("metalrate"); } } public observablecollection<ratemodel> metalrateondate { { return this._metalrateondate; } set { this._metalrateondate = value; notifypropertychanged("metalrateondate"); } } foreach (var item in metalrateondate) allmetalrate.add(item); what causing , how can solve it? you need clone object referenced item before it's a...
Read more

All overlapping substrings matching a java regex -

-
is there api method returns (possibly overlapping) substrings match regular expression? for example, have text string: string t = 04/31 412-555-1235; , , have pattern: pattern p = new pattern("\\d\\d+"); matches strings of 2 or more characters. the matches are: 04, 31, 412, 555, 1235. how overlapping matches? i want code return: 04, 31, 41, 412, 12, 55, 555, 55, 12, 123, 1235, 23, 235, 35. theoretically should possible -- there obvious o(n^2) algorithm enumerates , checks substrings against pattern. edit rather enumerating substrings, safer use region(int start, int end) method in matcher . checking pattern against separate, extracted substring might change result of match (e.g. if there non-capturing group or word boundary check @ start/end of pattern). edit 2 actually, it's unclear whether region() expect zero-width matches. specification vague, , experiments yield disappointing results. for example: string line = "xx90xx"; strin...
Read more