Hi all,
When a user searches for a keyword on my website I would like to be able to highlight his/her criteria in the search results.
I would also like to apply the same technique to highlight keywords anywhere on the website. Eg. If a user submits a msg on a forum, the string will be searched for possible swear words in the database, and be replaced with its own filtered word.
What i've started to think about is using vb's InStr command to search for possible values in a loop as long as there isnt a next record in the recordset.
would this be a suitable solution? or does ASP have any easier hidden commands i dont know about :)
Sean
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SeanGreasley.com - FREE video tutorials (C++/DirectX/Java/HTML/SQL
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Example:
http://www.rodsdot.com/ee/
You will need to beef that up a bit so you do not try to highlight items inside form fields, etc., but slicing and concatenating strings in JavaScript is fast. Plus you have no worrys about what you are writing to the browser window with response.write and what is existant in HTML.
Regards,
Rod
Business Accounts
Answer for Membership
by: rdivilbissPosted on 2005-03-25 at 09:00:22ID: 13631366
String functions, especially concatenation are very costly operations with ASP.
It would seem quickest to do this client side, understanding of course, some small percentage of users will not receive the benefit of the highlighted words.
From ASP, assuming you have a comma delimited list of search terms in a variable called searchTerms;
response.write("<scr"&"ipt
Then add the following JavaScript function:
<script language="javascript" type="text/javascript">
<!--
var searchTerms='system,browse
function highlightSearchTerms(){
var temp = document.body.innerHTML;
var st=searchTerms.split(',');
var tmpBody;
for (var idx=0;idx<st.length;idx++)
tmpBody=temp.split(st[idx]
temp=tmpBody[0];
for (var jdx=1;jdx<tmpBody.length;j
temp+='<span class="st">'+st[idx]+'</sp
}
document.body.innerHTML=te
}
//-->
</script>
Add style to suit;
<style>
<!--
.st { font-weight: bold; background-color: #DEFA7E }
-->
</style>
finally add this between </body> and </html>
<script>highlightSearchTer