Hi Dale,

The jQuery widgets are centered around modifying the DOM directly, which is not what Blazor does. On the contrary, in Blazor you can't really touch the DOM directly.

This carries even more weight for templates - once a template is declared, the parent component that renders it cannot influence it in any way, and so there is no way for the ListView for Blazor to go and add the selected class to your own content in the ItemTemplate, nor can it add attributes like aria-selected.

This key difference between the frameworks is why the Blazor ListView cannot offer an out-of-the-box selection feature and why the app must implement it. You can find an example of doing that in this sample project: https://github.com/telerik/blazor-ui/tree/master/listview/item-selection

Thus, I must mark this as "Declined" because there isn't a way for the component to do this on its own.

Regards,
Marin Bratanov
Progress Telerik