Solved

Custom Attribute Javascript Loop trough elements.

Posted on 2010-08-20
9
666 Views
Last Modified: 2013-11-11
So i have this code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test</title>
</head>
<body>
<form name="formtab1" id="formtab1">
  <select name="ZoneDropdown" id="ZoneDropdown" onchange="DisplayFormValues()" class="dropdown">
    <option value="" title="">Please Select</option>
    <option value="BLP" title="POLOB" price="5.0000">BLP</option>
  </select>
  <select name="LogoDropdown" id="LogoDropdown" onchange="DisplayFormValues()" class="dropdown">
    <option value="vv" title="tester" price="2.0000">Please Select</option>
    <option value="BLP" title="POLO" price="5.0000">BACK</option>
  </select>
  <input id="AddEmb" name="AddEmb" type="text" />
</form>
<script type="text/javascript">
function DisplayFormValues() { var str = '';
var elem = document.getElementById('formtab1').elements;
for(var i = 0; i < elem.length; i++) { str += elem[i].value };       <----------- I need elem[i].price not value |
		document.getElementById('AddEmb').value = str;
}

function on()
   {
   var w = document.formtab1.ZoneDropdown.selectedIndex;
   var selected_text = document.formtab1.ZoneDropdown[document.formtab1.ZoneDropdown.selectedIndex].getAttribute('price');
   alert(selected_text);
   }
</script>
</body>
</html>

Open in new window


I have multiple dropdowns, mu goal is to sum up the Custom Attribute "Price". But i cannot get the attribute to pull up the value. While example function "on" works. When i do it inside a loop it fails.

I tried:
 elem[i].price, elem[i].getAttribute('price') 

Open in new window

and a bunch of things but nothing worked for me.

Thanks
0
Comment
Question by:uniformer
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 3
9 Comments
 
LVL 82

Expert Comment

by:leakim971
ID: 33490189
use : elem[i].getAttribute("price");
0
 
LVL 82

Expert Comment

by:leakim971
ID: 33490191
better(?) :  parseFloat(    elem[i].getAttribute("price")     );
0
 

Author Comment

by:uniformer
ID: 33491837
[code]use : elem[i].getAttribute("price");[/code]

I tried this in this

[code]for(var i = 0; i < elem.length; i++) { str += elem[i].value };[/code]

But the result not good. My whole goal in this loop is instead of
[code] elem[i].value [/code]

to get the Custom Atribute price.
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 82

Expert Comment

by:leakim971
ID: 33491843
You said : mu goal is to sum up the Custom Attribute "Price"

So :


str = 0;
for(var i = 0; i < elem.length; i++) { str += elem[i].getAttribute("price"); };

Open in new window

0
 
LVL 82

Expert Comment

by:leakim971
ID: 33491845
Or better(?) :


str = 0;
for(var i = 0; i < elem.length; i++) { str += parseFloat(elem[i].getAttribute("price")); };

Open in new window

0
 

Author Comment

by:uniformer
ID: 33492004
[code]
function DisplayFormValues() { var str = '0';
var elem = document.getElementById('formtab1').elements;
str = 0;
for(var i = 0; i < elem.length; i++) { str += parseFloat(elem[i].getAttribute("price")); };
document.getElementById('AddEmb').value = str;
}
[/code]

This code gives me "NaN" when testing.

[code]
function DisplayFormValues() { var str = '0';
var elem = document.getElementById('formtab1').elements;
str = 0;
for(var i = 0; i < elem.length; i++) { str += elem[i].getAttribute("price"); };
document.getElementById('AddEmb').value = str;
}
[/code]

This code gives me "0"

Am i doing something wrong?

Thanks
0
 
LVL 82

Accepted Solution

by:
leakim971 earned 250 total points
ID: 33492099
Check this :


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test</title>
<script type="text/javascript">
	function DisplayFormValues() {
		var str = 0;
		var elem = document.getElementById('formtab1').elements;
		for(var i=0;i<elem.length;i++) {
			if(elem[i].tagName.toLowerCase() == "select") {
				var price = elem[i].options[elem[i].selectedIndex].getAttribute("price");
				str += (price)?parseFloat(price):0;
			}
			else {
				var price = elem[i].getAttribute("price");
				str += (price)?parseFloat(price):0;
			}
		}
		document.getElementById('AddEmb').value = "$" + str.toFixed(2);
	}
	
	function on() {
		var w = document.formtab1.ZoneDropdown.selectedIndex;
		var selected_text = document.formtab1.ZoneDropdown[document.formtab1.ZoneDropdown.selectedIndex].getAttribute('price');
		alert(selected_text);
	}
</script>
</head>
<body>
<form name="formtab1" id="formtab1">
    <select name="ZoneDropdown" id="ZoneDropdown" onchange="DisplayFormValues();" class="dropdown">
        <option value="" title="">Please Select</option>
        <option value="BLP" title="POLOB" price="5.0000">BLP</option>
    </select>
    <select name="LogoDropdown" id="LogoDropdown" onchange="DisplayFormValues();" class="dropdown">
        <option value="vv" title="tester" price="2.0000">Please Select</option>
        <option value="BLP" title="POLO" price="5.0000">BACK</option>
    </select>
    <input id="AddEmb" name="AddEmb" type="text" />
</form>
</body>
</html>

Open in new window

0
 

Author Comment

by:uniformer
ID: 33492313
Yep! Thats it... I guess i was doing a few things wrong.. Thanks
0
 
LVL 82

Expert Comment

by:leakim971
ID: 33492388
You're welcome! Thanks for the points!
0

Featured Post

Revamp Your Training Process

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action.

Question has a verified solution.

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

Suggested Solutions

In my daily work (mainly using ASP.net), I need to write a lot of JavaScript code. One of the most repetitive tasks I do are the jQuery Ajax calls. You know: (CODE) I don't know if for you it's the same, but for me is soooo tedious to write the …
Nothing in an HTTP request can be trusted, including HTTP headers and form data.  A form token is a tool that can be used to guard against request forgeries (CSRF).  This article shows an improved approach to form tokens, making it more difficult to…
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…

734 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