This sample uses CTP (Community Technical Preview) features. The API and behavior may change when these features are released with full support.
Enabling UI virtualization allows the igCombo control to quickly and efficiently render large amounts of data in the combo. When this feature is enabled, the igCombo control reuses HTML elements and replaces the contents of these elements while scrolling which significantly reduces the overhead in rendering new data. This sample accesses the Northwind Service API.