add numbers if checkbox is checked

Question

0.00/5 (No votes)

See more:

HTML

<!DOCTYPE html>
<html>
<head>
<style>
table, th, td {
  font-family: calibri;
  border: 1px solid blue;
  border-collapse: collapse;
  }
#one {
  width: 40px;    
  }
#two {
  width: 200px;
}
#three {
  width: 60px;
}
</style>
<script language="javascript" type="text/javascript">
function my() {
  var obj = document.getElementById("t");
  var n = obj.getElementsByTagName("input")
  var m = ""
  for (var i = 0; i < n.length; i++) {
    if (n[i].checked) {
      var y += n[i+1].value;
      alert(y)
    }
  }  
  ;
}
</script>
</head>
<body>
<table border = 1 id="t">
  <tr>
    <th id="one" align="center"><input type="checkbox" name="chkbox"  /></th>
    <th id="two">Name</th>
    <th id="three">Amount</th>
  </tr>
  <tr>
    <td align="center"><input type="checkbox" name="chkbox"  /></td> 
    <td align="center">Venkata Chary Padala</td>
    <td align="center"><input type="text" name="txtbox" value=""  /></td>
  </tr>
  <tr>
    <td align="center"><input type="Checkbox" name="chkbox"  /></td> 
    <td align="center">Vasantha Padala</td>
    <td align="center"><input type="text" name="txtbox" /></td>
  </tr>
  <tr>
    <td align="center"><input type="checkbox" name="chkbox" /></td> 
    <td align="center">Rachana Padala</td>
    <td align="center"><input type="text" name="txtbox" /></td>
  </tr>
  <tr>
    <td align="center"><input type="checkbox" name="chkbox"  /></td> 
    <td align="center">Shyamala Padala</td>
    <td align="center"><input type="text" name="txtbox" /></td>
  </tr>
  <tr>
    <td align="center"><input type="checkbox" name="chkbox"  /></td> 
    <td align="center">Narayana Padala</td>
    <td align="center"><input type="text" name="txtbox" /></td>
  </tr>
  <tr>
    <td align="center"><input type="checkbox" name="chkbox"  /></td> 
    <td align="center">Shravan Padala</td>
    <td align="center"><input type="text" name="txtbox" /></td>
  </tr>
</table>
<input type="button" name="txtbox" value="Click For Total" onclick="my()" />
</body>
</html>

i have above code its need add numbers if checkbox is checked, but its not working as inteded.
can anybody help where making wrong?

Posted 6-Apr-14 4:22am

venkatpvc

Add a Solution

Comments

[no name] 6-Apr-14 10:27am

It would be exactly the same answer you got when you posted this exact same code before.

2 solutions

Solution 1

See answers at Please show me where I making wrong in code[^].

Posted 6-Apr-14 4:54am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Aarti Meswania · Accepted Answer · 2014-04-06T04:55:00

hi,many small mistakes you did
always put semicolon when a sentence is complete.
and when adding integer use parseInt function

JavaScript

<script language="javascript" type="text/javascript">
function my() 
{
  var obj = document.getElementById("t");
  var n = obj.getElementsByTagName("input");
  var total = 0;
  for (var i = 0; i < n.length; i++) 
  {
    if (n[i].checked) 
    {
       var amt = parseInt(n[i+1].value, 0);
       if(!isNaN(amt)) 
       {
          total += amt;
       }
    }
  }  
  if ( total > 0)
    alert(total);
}
</script>

Happy Coding!
:)