Hi Philip,

We now have an opened request for endless scrolling feature for the ListView.

In case you find it interesting and applicable for your scenario, you might vote for it and follow it to keep in track with its progress.

Regards,
Nadezhda Tacheva
Progress Telerik

Hi Philip,

In general, virtual scrolling requires that the component that does that virtualization has control over the rendering of the items, and that those items have the same dimensions. In the listview, that's not the case, which is why virtual scrolling can't really fit a listview.

What I can suggest you look into is using one of the following:

• our grid that has such a feature for both the rows and the columns
  • perhaps using the row template will give you enough flexibility even though you can't order rows horizontally. Hiding the headers with CSS can also make the grid look more like a listview.
• or, the virtualization component Microsoft have provided for cases similar to yours

Apart from that, the listview has built-in paging that you can use to reduce the size of the DOM and speed up the UI. It even offers an OnRead event that lets you implement load-on-demand (server operations such as paging, sorting, filtering) so you don't have to load all the data.

Regards,
Marin Bratanov
Progress Telerik