qnguyen:
You are correct that SPCascadeDropdowns does not work with the "Quick Edit" view - aka the new Datasheet view - in SharePoint 2013 as of SPServices 2013.01.
In fact, it's been on my mental list to look at when I have the time. I've just added an item into the Issue Tracker for it. Feel free to vote it up if you've like to push it higher on the priority list:
https://spservices.codeplex.com/workitem/10181
M.
You are correct that SPCascadeDropdowns does not work with the "Quick Edit" view - aka the new Datasheet view - in SharePoint 2013 as of SPServices 2013.01.
In fact, it's been on my mental list to look at when I have the time. I've just added an item into the Issue Tracker for it. Feel free to vote it up if you've like to push it higher on the priority list:
https://spservices.codeplex.com/workitem/10181
M.