Keeping New List Contents in View

James Robertson Jan 14, 2008

General

This code demonstrates how to keep the content at the bottom of a list always in view, similar to a chat window.

A simple chat-style display

Good afternoon. How are you?

Hello?

Is anybody there?

Notes

Created by: James Robertson
Web Site: http://www.r0bertson.co.uk
Posted: January 14, 2008

Source Code

Paste this source code into the designated areas.

External file

Paste this code into an external JavaScript file named: listContents.js

/* This script and many more are available free online at
The JavaScript Source!! http://www.javascriptsource.com
Created by: James Robertson | http://www.r0bertson.co.uk */

function addText() {
  olist = document.getElementById('list');
  op = document.createElement('p');
  op.innerHTML = 'More text ...';
  ocontent = document.getElementById('content');
  ocontent.appendChild(op);
  olist.scrollTop = olist.scrollHeight;
}

CSS

Paste this code into your external CSS file or in the <style> section within the HEAD section of your HTML document.

div#list {
  background-color: #DFDFDF;
  color: #000;
  overflow: scroll;
  width: 15em;
  height: 10em;
  padding: 10px;
}

Head

Paste this code into the HEAD section of your HTML document.


<script type="text/javascript" src="listContents.js"></script>

Body

Paste this code into the BODY section of your HTML document


<p>A simple chat-style display</p>
<div id="list">
  <div id="content">
  <p class="other_user">Good afternoon. How are you?</p>
  <p class="other_user">Hello?</p>
  <p class="other_user">Is anybody there?</p>
  </div>
</div>
<p>
<div id="toolbar"><input type="button" value="add text" onclick="addText()" /></div>

Leave a Response

(2 comments)

It should be working now. Thanks for pointing it out.

Lee Jan 31, 2008

ERROR: Script keeping-new-list-contents-in-view.html is missing at /www2/jss/cgi-bin/scriptbot2.cgi line 53.

Luigi VISINTIN Jan 25, 2008

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