As of R1 2021, the Telerik UI TileLayout for aspnet-core provides keyboard navigation.
For a complete example, refer to the demo on using the keyboard navigation of the TileLayout.
The TileLayout supports its keyboard navigation functionality through the
navigatable option. When set to
true, you can initially focus the widget and modify the dimensions and order of its containers. The navigation occurs at a container-level.
The following example demonstrates how to enable the key navigation in the TileLayout.
@(Html.Kendo().TileLayout() .Name("tilelayout") .Navigatable(true) // options omitted for brevity )