there is very simple steps to get the dropdownlist value in controller at onChange event.
1) create the dropdownlist in .ASPX page.
Like:
id of the dropdownlist: ddl.
2) write the ajax call :
$(document).ready(function() {
$("#ddl").change(function() {
var text = $("#ddl> option:selected").attr("text");
$.ajax({
url: "/Controller/Action/",
data: 'ddlValue=' + text ,
type: 'GET',
dataType: 'html'
});
});
and the you can pass the ddlValue in the action method and you can get the text value of the drop down.
Hope its helpful. njoy the coding...