I'm loading my combo box with around 4,000 items and am noticing a significant difference in performance between the old Q22007 version of the rad.combobox and the Q32010 ajax version. Here's what my old Q22007 version looks like:
Here's what I'm using for my new Q32010 combo box:
The old control loads the list almost instantly, but the new one takes 10 seconds!!! How can acheive the lightening fast performance I enjoyed in the old control? I don't want to have to use LoadOnDemand, unless it will display all items in the list. If I can't, I'm just going to keep using the old one which is sad really.