I was referring to this code here. This suffices my need but I need to display the contents in 2 columns instead of 1. Hence, I thought of using a ContainerList with grid layout. The problem here is that the boolean initListModel(List cmp) is not getting called for the containerList.
I also tried to dynamically add the ContainerList but am having problems while using it with ImageDownloadService, the way it was used in case of List. It would be great if anyone could provide me with any sample code to get along