SPCascadeDropdowns Question

May 9, 2015 at 9:42 PM
Hey sympmarc,

I was curious if you could give me insight on how SPCascadeDropdowns works behind the scenes.

I noticed something interesting if I select an item in the parent dropdown and I have three items show up in the child dropdown. If open the child list I'm looking up with the child dropdown in a new browser tab and I add a new item to the list, when I go back to the NewForm page that has the cascading functionality and I select the same item in the parent dropdown, there will be four items in the child dropdown without me having to refresh the NewForm page.

Can you or anyone else give me insight on how SPCascadeDropdowns is reloading the child lookup dropdown without needing to refresh the NewForm page?