I'm trying to make a datagrid that works much like the way it works when you search Google images. It will return a set amount of data. When you scroll to the bottom it will have a button that allows you to retrieve more data that is then added to the datagrid, and then you have to scroll to the bottom again to see the button.
How would you make this happen?
I had an idea of not including the button in the layout until you have scrolled to the bottom, but I'm not sure how I would know that I have reached the bottom of the datagrid.