public interface IContextMenuItemInfo

<div class="card-header">
    @if (ClickedItem != null) {
        <span>Clicked item: <b>@ClickedItem</b></span>
    }
    else {
        <span>Clicked item: None</span>
    }
</div>
<DxContextMenu ItemClick="@OnItemClick">
        <Items>
            <DxContextMenuItem Text="Sort By" IconUrl="images/Sort_by.svg">
                <Items>
                    <DxContextMenuItem Text="Name"></DxContextMenuItem>
                    <DxContextMenuItem Text="Size"></DxContextMenuItem>
                    <DxContextMenuItem Text="Type"></DxContextMenuItem>
                </Items>
            </DxContextMenuItem>
            <DxContextMenuItem Text="Copy" IconUrl="images/Copy.svg" BeginGroup="true"></DxContextMenuItem>
            <DxContextMenuItem Text="Cut" IconUrl="images/Cut.svg"></DxContextMenuItem>
            <DxContextMenuItem Text="Remove" IconUrl="images/Clear.svg"></DxContextMenuItem>
            <DxContextMenuItem Text="Select All" BeginGroup="true"></DxContextMenuItem>
        </Items>
    </DxContextMenu>
</div>

@code {
    string ClickedItem { get; set; }

    void OnItemClick(ContextMenuItemClickEventArgs args) {
        ClickedItem = args.ItemInfo.Text;
    }
}