# VirtualScroll

in Wisej.NET TreeViews, ComboBoxes, ListBoxes, ListViews, DataGridViews and DataRepeaters support [virtual scrolling](https://docs.wisej.com/docs/controls/lists/combobox#virtual-scrolling) allowing these controls to handle an **unlimited number of items**, while only the visible items are rendered.\
This offers a very good user experience even for ComboBoxes with more than 100.000 items.

You can control the behavior when scrolling by setting the [PrefetchItem ](https://docs.wisej.com/docs/releases/whats-new-in-2.1#virtual-prefetch)property.<br>