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Example of Virtualization in ASP.NET MVC Dropdown List Control

This example demonstrates the virtualization support of the DropDownList in ASP.NET MVC application. The component has 150 items bound to it; however, when you open the suggestion list, only few items are loaded based on the popup height, and the remaining items are loaded while scrolling.

DEMO
SOURCE

Local Data

Remote Data

Grouping

The DropDownList component supports virtualization, which improves UI performance for large amounts of data. To enable virtualization, set the enableVirtualization property to true. When virtualization is enabled, DropDownList doesn't render the entire suggestion data source on initial component rendering. It loads the N number of items in the popup on initial rendering and the remaining set number of items will load while scrolling. Virtualization works with both local and remote data.

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