MultiSelect - Virtualization

The Telerik Blazor MultiSelect provides support for UI virtualization to significantly improve the performance for large data sets. To enable it, set the ScrollMode, PopupHeight, ItemHeight and PageSize.

You can also use filtering with virtualization, and you can fetch the data on demand through a remote service, so you don't have to load all the available records at once, you can only request those the user scrolls or filters to.

When selecting all items in a virtualized MultiSelect, use the OnSelectAll event to assign all data items to args.Items in the event handler.

The component also provides a NoDataTemplate. Use it to customize the dropdown content when there are no items to display.