I have a page with an updatepanel that contains two ajaxToolkit:CascadingDropDown controls.
I am trying to populate them after the page loads using javascript and/or JQuery. However, with all of the methods I've tried the javascript runs before cascadingdropdown controls have rendered. It finds the initial dropdownlist controls just fine, but the
cascadingdropdown controls return null.
I know the javascript function I'm calling is good, because it works if I make a button on the page call my function from there. So, it seems like the function is firing too early.
I've tried to fire it using window.load, document.ready, by registering a client startup script in my code behind, and by just calling the function in script tags located at the bottom of my aspx page. I've also tried adding a two second delay at the start
of the function by waiting for the clock to reach now plus two seconds.
To summarize:
My function works, but is just not being called at the correct time. Where and when do I need to call it for the page to truly be finished loading all my controls?
Thanks,
JTok
