如何在div的底部保持滚动条？

Question

I have many tabs and when click any tab, a vertical scrolling div is shown. Like facebook messages page: When click to any User's name. Dialog seems and scroll bar is on the bottom of div by default .

Here is tabs:

<ul class="companies">
    @foreach (var item in Model)
    {
       <li id='company_@(item.Id)' data-id='@item.Id' >
           <a>@item.Name</a>
       </li>
    }
</ul>

And content:

@foreach (var item in Model)
{
   <div id="scrollingDiv"  class="scrollingDiv"> @item.News </div>
}

And CSS:

.scrollingDiv {
    overflow-x: hidden;
    max-height: 500px;
    overflow-y: scroll;
}

I want to keep scroll bar on the bottom when click any tab. (To see always last news). Also current div. I checked this questions. But not worked in my application. How can I solve this issue?

Answer 1

With JavaScript, you can do something like

var d = document.getElementById('myDiv');

if(d.scrollHeight > d.clientHeight) {
  d.scrollTop = d.scrollHeight - d.clientHeight;
}

and execute this logic every time you add content to the div or when you want the scrollable container to scroll to the bottom.

Answer 2

jQuery's scrollTop() function might be just what you need. See http://api.jquery.com/scrollTop/

Answer 3

您可以使用以下代码来实现

$('.full-area').scrollTop($('.full-area')[0].scrollHeight);