Html Attribute From Jscript

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How do you make an attribute equal a return value of a javascript method?

HTML

<script language="javascript">
function getValue(divbox){
var returnvalue = 0;
for(var i = 0 ;i < divbox.chilNodes.length;i++)
{
returnvalue += +divbox.childNodes[i].getAttribute("num");
}
alert(returnvalue);
return returnvalue;
}
</script>

<style>


</style>

<div id="id1" v="getValue(this);">
<p num="2" ></p>
<p num="3" ></p>
<p num="2" ></p>
<p num="2" ></p>
<p num="2" ></p>
<p num="4" ></p>
</div>

<button  önclick="alert(getElementById('id1').getAttribute('v'))">Get Sum</button>

So basically I want to make id1.v equal the sum of all the num attributes.

So when I use getAttribute("v") I want it to return the sum of all the nums

Here is an example in C#.

C#

int Value
{
    get { return getNum(); }
}

public int getNum()
{
    return new Random().Next(0, 1000);
}

Posted 29-May-12 20:25pm

ZaiDz

Updated 30-May-12 11:43am

v3

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Comments

ZaiDz 30-May-12 2:27am

When I push the button it shows "getValue(this);" but I want it to run that method and return the string instead

Sunasara Imdadhusen 31-May-12 1:14am

Not clear!!!

1 solution

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Sunasara Imdadhusen · Answer 1 · 2012-05-29T21:19:00

Hi
Use following code

Javascript

C#

function getValue(obj){
  var divbox = document.getElementById(obj);
  var returnvalue=0; 
  for(var i = 0 ;i < divbox.chilNodes.length;i++)
  {
     returnvalue += Number(divbox.childNodes[i].getAttribute("num"));
  }
  getElementById('id1').setAttribute('v',returnvalue);
}

HTML