Solved

Change background color of table cell onclick

Posted on 2011-09-28
8
518 Views
Last Modified: 2012-08-13
Hi,

I have this scenario where I would like to change the background color on the table cell that the user clicks on and when the user then clicks another cell the one first clicked on should go back to the normal/original background color.

I tried this but didn't get it to work.
 var whosChanged = null;
        function changeMe(el) {
           
            el.style.backgroundColor = "#FE3000";
            el.style.color = "#000000";
            if (whosChanged != null) {
                alert("hej");
                whosChanged.style.backgroundColor = ""
                whosChanged.style.color = ""
            }
            
            whosChanged = el;
        }

Open in new window


and then...

onclick="changeMe(this);"

Thanks for help!

Peter
0
Comment
Question by:peternordberg
8 Comments
 
LVL 17

Accepted Solution

by:
sonawanekiran earned 167 total points
ID: 36716622
Check below code

Demo:
http://jsfiddle.net/QSU3j/
<html>
<head>
<title>Kiran Test</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js" type="text/javascript"></script>
<script>
$(document).ready(function(){
     $("table td").css("background-color","red");
     $("table td").click(function(){
       $("table td").css("background-color","red");
       $(this).css("background-color","blue");
     });
});
</script>
</head>
<body>
<table width="200" border="1" cellspacing="5" cellpadding="5">
    <tr>
        <td>cell1
        </td>
        <td>cell2
        </td>
        <td>cell3
        </td>
      
    </tr>
      <tr>
        <td>cell11
        </td>
        <td>cell21
        </td>
        <td>cell31
        </td>
      
    </tr>
   
</table>

</body>
</html>

Open in new window

0
 
LVL 40

Assisted Solution

by:gurvinder372
gurvinder372 earned 166 total points
ID: 36716624
class2 should be the default class
<style>
  td.class1
  {
      background-color : #FE3000;
      color:#000;
  }
  td.class2
  {
      background : none;
      color:inherit;
  }
</style>

function changeMe(el)
{          
    el.classname = el.classname == "class1" ?  "class2":"class1";
}
0
 
LVL 13

Assisted Solution

by:ansudhindra
ansudhindra earned 167 total points
ID: 36716633
check this one...
http://jsfiddle.net/Sudhindra/XXAGY/
Code is
 
<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title> - jsFiddle demo</title>
  <script type='text/javascript' src='http://code.jquery.com/jquery-1.6.3.js'></script>
  
  <link rel="stylesheet" type="text/css" href="/css/normalize.css">
  <link rel="stylesheet" type="text/css" href="/css/result-light.css">
  
  <style type='text/css'>
    table {
    width:200px;
    cursor:pointer;
}
.normalColor {
    background-color:blue;
}

.clickColor {
    background-color:red;
}

  </style>
  
  <script type='text/javascript'>
  //<![CDATA[ 
  $(window).load(function(){
  $('.normalColor').click(function(){
    $('.clickColor').attr('class','normalColor');        
    $(this).attr('class','clickColor');
});
  });
  //]]> 
  </script>
  
</head>
<body>
  
<table id="colorTab">
    <tr class="normalColor"><td>1</td><td>One</td></tr>
    <tr class="normalColor"><td>2</td><td>Two</td></tr>
    <tr class="normalColor"><td>3</td><td>Three</td></tr>
    <tr class="normalColor"><td>4</td><td>Four</td></tr>
</table>
  
</body>


</html>

Open in new window

0
3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

 

Author Comment

by:peternordberg
ID: 36717234
Hi and thanks for your answers,

I would rather have it in a function that I can call at the Onclick event since I also need to retrieve a value from the cell I'm clicking on. I tried your code gurvinder372, but I couldn't get it to work.

Thanks for your help!

Peter
0
 
LVL 40

Expert Comment

by:gurvinder372
ID: 36812696
please share the code that you have tried
0
 

Author Comment

by:peternordberg
ID: 36813125
This code:

 function changeMe(el,id) {
        
            var scheduleID = document.getElementById("<%=scheduleID.ClientID %>");
            scheduleID.value = id;
            alert(scheduleID.value)
            el.classname = el.classname == "class1" ? "class2" : "class1";
        }

Open in new window


And the td tag like this (it's done in code behind in asp.net):
s.AppendLine("<td width=""100px"" style="" height:50px; color:#fff; border:1px solid #c9c9c9; background-color:#fff; padding:0px; cursor:pointer;"" onMouseOver=""this.style.background='lightyellow'"" OnMouseOut=""this.style.background='white'"" OnClick=""this.style.background='lightyellow'; OpenWindow('editSchedule.aspx?subjectID=" & dr("subjectID") & "&scheduleID=" & dr("scheduleID") & "', 'RadWindow1');""><img src=""../../Images/Grafik/bgCell.png"" width=""100"" /><div style=""padding:5px;"">" & dr("subject") & "</div></td>")

Open in new window


The alert triggers allright but the background color isn't changing.

Peter
0
 
LVL 40

Expert Comment

by:gurvinder372
ID: 36813858
first of all, you need to use class than inline styles, so that its easier to change the class only

make line 6 as

el.classname = (el.classname == "class1") ? "class2" : "class1";
0
 

Author Closing Comment

by:peternordberg
ID: 36966638
It helped me on the right track.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Just a quick little trick I learned recently.  Now that I'm using jQuery with abandon in my asp.net applications, I have grown tired of the following syntax:      (CODE) I suppose it just offends my sense of decency to put inline VBScript on a…
ASP.Net to Oracle Connectivity Recently I had to develop an ASP.NET application connecting to an Oracle database.As I am doing it first time ,I had to solve several problems. This article will help to such developers  to develop an ASP.NET client…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question