I am using a LoadOnDemand Combo Box because the amount of data can sometimes be in the 10s of thousands. I have enabled virtualscrolling and ShowMoreResults. My question is that when loading data in portions of 100 - when it has to make an ajax call back to the server to get more data - is there a way to show an animated image in the combo box or some type of text like "Loading.." while is retreiving the next batch of data from the server and showing it in the UI?