Currently, SfListView do not have support for PullToRefresh and you cannot achieve this using Swiping events. Because, swipe template is mandatory for Swiping and also we would like to let you know that swipe direction denotes direction of Swiping based on SfListView orientation(If Orientation is vertical, the swipe direction will be Left and Right only. If Orientation is horizontal, the swipe direction will be Top and Bottom only.) For PullToRefresh, we have already considered as feature request and it will be available in our upcoming release which is planned to be rolled out at the end of this month.
Regards,
G.Muthu Kumaran.