Javascript: Loop through all controls in the page

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Hello,

I need help with Javascript code. What i want to do basically is to loop through all controls in the page. The page contains table, gridview with itemtemplates etc. I want to set certain value for element type textbox and another value for elementtype label.
my code looks something like this:

JavaScript

function postExecute() {
       for (var i = 0; i < document.forms[0].elements.length; i++) {
           element = document.forms[0].elements[i];

           switch (element.type) {
               case 'text':
                   if (element.value.length > 0) {
                       element.value =  element.value.replace("<", '<'); //do htmlDecode
                   }
                   break;
               case 'span':
                   if (element.value.length > 0) {
                       element.value = element.value.replace("<", '<');
                       //do htmlcode.
                   }
                   break;
           }
       }

   }

If I put only for elementtype text. It works. I want it to work for elementtype label. not all labels have a span. Is there an elementtype "label" in javascript?? or what would be a way to get this done??

Posted 17-Aug-13 11:24am

namrata.cfa1

Updated 17-Aug-13 22:46pm

Joezer BH

v2

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**Joezer BH** · Answer 1 · 2013-08-17T21:56:00

Here's a sample using jQuery to locate all Textbox elements

JavaScript

$('form input[type="text"]').each(function(){
        // Do stuff with each of the Textboxes here e.g.:
        if (this.value.match(/\D/)) // regular expression for numbers only.
            Foo();
});

* To learn more about jQuery[^]

Cheers,
Edo

Mohibur Rashid · Answer 2 · 2013-08-18T15:05:00

Solution 2

all element has tag name. So you can get any element by tagname.
such as you want to get all the element with tag INPUT then use getelementsbytagname function.

You are looking for TYPE attribute. TYPE attribute is only available for element INPUT

SPAN is a ELEMENT. It does not have any attribute name TYPE. Now if you want to know the type of element then use tagName. i.e. element.tagName. samething about Label. You do not have TYPE attribute. But using tagName you can figure out what type of element are you dealing with.

Posted 18-Aug-13 15:05pm

Mohibur Rashid

Comments

namrata.cfa1 19-Aug-13 14:22pm

getelementsbytagname worked. however, there is another problem now. I want the innerHTML to be replaced with something.
For example: the text displayed in the label is "abc<pqr">
When I do labels[i].innerHTML = labels[i].innerHTML.replace(/ get the following output: "abc< span="">

Mohibur Rashid 19-Aug-13 23:07pm

either you can go for regular expression or you can use a id to retrieve data from the span