Grid with columns in method

GridSample.razor

@page "/"
@using Microsoft.AspNetCore.Components.QuickGrid

<label>
    <input @bind="@showName" type="checkbox" />
    Show name
</label>

<QuickGrid Items="@people">
    @Columns()
</QuickGrid>

@code {
    bool showName = true;
    record Person(int PersonId, string Name, DateOnly BirthDate);

    private RenderFragment Columns() => @<text>
        <PropertyColumn TGridItem="Person" TProp="int" Property="@(p => p.PersonId)" Sortable="true" />
        @if (showName)
        {
            <PropertyColumn TGridItem="Person" TProp="string" Property="@(p => p.Name)" Sortable="true" />
        }
        <PropertyColumn TGridItem="Person" TProp="DateOnly" Property="@(p => p.BirthDate)" Format="yyyy-MM-dd" Sortable="true" />
    </text>;

    IQueryable<Person> people = new[]
    {
        new Person(10895, "Jean Martin", new DateOnly(1985, 3, 16)),
        new Person(10944, "António Langa", new DateOnly(1991, 12, 1)),
        new Person(11203, "Julie Smith", new DateOnly(1958, 10, 10)),
        new Person(11205, "Nur Sari", new DateOnly(1922, 4, 27)),
        new Person(11898, "Jose Hernandez", new DateOnly(2011, 5, 3)),
        new Person(12130, "Kenji Sato", new DateOnly(2004, 1, 9)),
    }.AsQueryable();
}