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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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validation - how to get selected index of html.dropdownlistfor -

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i have dropdownlist:

<%= html.dropdownlistfor(model => model.operatingsystem, model.operatingsystemdropdownbowvalues, new { style = "width:142px; margin-left: 10px; font-size: 11px;" })%>

is possible index of item? need validate form, if first (default = "choose...") dropdownlist item selected(not user) not way save other form values.

only if compare submitted value original list, or use javascript/jquery on submission.

can add value of "choose..." option empty string?

if can set value of "choose..." pick value return of dropdown element isnullorempty

the [required] attribute should work being sumitted too.

cheers


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