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c# - Usage of Server Side Controls in MVC Frame work -

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i using asp.net 4.0 , mvc 2.0 web application. project requiremrnt have use server side control in application not possibl in noraml case. ideally want use adrotator control , datalist control. i saw few samples , references in codepleax mvc controllib howwver found less useful. can tell how utilize theese controls in asp.net application along mvc. note: please provide functionalities related adrotator , datalist controls not equivalent functionalities thanks in advace. mvc pages not use normal .net solution makes use of normal .net components impossible. a normal .net page use event driven solution call different methods service side mvc use actions , view completly different way handle things. also, mvc not use viewstate normal .net controlls require. found article discussing mixing of normal .net , mvc.
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javascript - JQuery Selector code validation for list of select options -

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i'm having situation 3 select box there in form 

    <form>    <select name="select1">  <option value="a">a</option>  <option value="b">b</option>  <option value="c">c</option>  </select>  <select name="select2">  <option value="a">a</option>  <option value="b">b</option>  <option value="c">c</option>  </select>   <select name="select3">  <option value="a">a</option>  <option value="b">b</option>  <option value="c">c</option>  </select> </form>

on submitting form have check atleast 1 of select box value should "a".

is there 1 line selctor query jquery['form'].find('select val=="a"').length() .

thanks, nithish.

if understand right, , want know if @ least 1 selected option has value of 'a', should like

if( $('form').find('option:selected[value=a]').length ) {    /*  */ }

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