Doing postback on a select with onchange without JSON

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How do I create a \[code\]postback\[/code\] with a \[code\]onchange\[/code\] while getting the value into a \[code\]Request[]\[/code\]The code:\[code\]<select name="nameOnSelection" id="idOnSelection" onchange=""> <option value="http://stackoverflow.com/questions/15873693/1"> random string </option> <option value="http://stackoverflow.com/questions/15873693/2"> random string </option></select>\[/code\]Im coding in cshtml. and im not looking for JSON solution.