Question

I have a cascade dropdownlist when the first change value the second change using .change event.
What I want is if the value of the selected item of the first dropdownlist was selected by default how to invoke the change of the second?
On resume how to bind the second dropdownlist on the first dropdownlist selected item not only on change event?

Answer 1

What ever it is you’re doing when the first item is selected, do that on page load also.

For example:

$.ready(function(){
   doStuffOnIndexChange();
   $('selectOne').change(doStuffOnIndexChange);
 }
)

function doStuffOnIndexChange()
{
 // whatever you need to do here.
}

Or as John pointed out in his comment, fire the change event for the initial select item:

$('.ddlOne').change(function(){/*whatever*/}).change();