how to get all drop down values

This will loop through any dropdown elements found and perform the code within the function on them.  Access the dropdown value within the fuction using $(el).val()

$('select').each(function(ix,el){
	//add code here.
	//dropdown val = $(el).val()
});

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Working example: http://jsfiddle.net/vp20abhh/

Thanks vr6r ....

may i know what is ix and el

is el means element ?

but if i want to take value with id because ...

some other drop down(element id will differ eg: counId like that ) also there

Yes in that example, el is the element referenced in the current loop iteration.  Likewise, ix is the index number of that element within the collection of elements returned by the selection, which in this case is all "select" dropdown elements.

Are you asking how you would get the element id, along with the value?
If so, you would do something like this...

$('select').each(function(ix,el){
	alert($(el).attr('id') + ": " + $(el).val());
});

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Hope this helps.

no no...

div id="headNo1">
<select name="headNo1" id="headNo1">
	<option value="1">1</option>
	<option value="2">2</option>
	<option value="3">3</option>
	<option value="4">4</option>
	<option value="5">5</option>
	<option value="6">6</option>
	<option value="7">7</option>
	<option value="8">8</option>
	<option value="9">9</option>
</select>
</div>
<div id="headNo2">
<select name="headNo2" id="headNo2">
	<option value="1">1</option>
	<option value="2">2</option>
	<option value="3">3</option>
	<option value="4">4</option>
	<option value="5">5</option>
	<option value="6">6</option>
	<option value="7">7</option>
	<option value="8">8</option>
	<option value="9">9</option>
</select>
</div>
<div id="xxxx">
<select name="xxxxx" id="xxxx">
	<option value="1">1</option>
	<option value="2">2</option>
	<option value="3">3</option>
	<option value="4">4</option>
	<option value="5">5</option>
	<option value="6">6</option>
	<option value="7">7</option>
	<option value="8">8</option>
	<option value="9">9</option>
</select>
</div>

...........

<div id="headNon">
<select name="headNon" id="headNon">
	<option value="1">1</option>
	<option value="2">2</option>
	<option value="3">3</option>
	<option value="4">4</option>
	<option value="5">5</option>
	<option value="6">6</option>
	<option value="7">7</option>
	<option value="8">8</option>
	<option value="9">9</option>
</select>
</div>

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you can check the above code there is 2 diffrent Id there

one is headno(1,2,3...n)
other  one xxxx

i want only headno values no other drop down values

Test page : http://jsfiddle.net/31fbvfbo/

$("select[id^=headNo] option").each(function() {
      // checking, we alert value and text of option all select with ID like headNo(1,2,...)
      alert( $(this).val() + " / " + $(this).text() );
});

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vr6r its not working in my code ....

leakim971 i think your getting my question wrongly ...
i want the selected values of all drop down

i changed your code like this but not working can you help me
 

$("select[id^=headNo] selected ").each(function() {
      // checking, we alert value and text of option all select with ID like headNo(1,2,...)
      alert( $(this).val() + " / " + $(this).text() );
});

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Are you getting an error message at all?  The jsfiddle link I included in my example will show you a working version of the code so you can see that it definitely works but it will be hard to tell what the problem is without more info.

If you can post the code you are using so we can take a look I suspect we'll be able to spot the issue pretty quickly.