<div class="rz-p-12 rz-text-align-center">
    <RadzenRadioButtonList @bind-Value=@value TValue="int?">
        <Items>
            <RadzenRadioButtonListItem Text="Orders" Value="1" TValue="int?" />
            <RadzenRadioButtonListItem Text="Employees" Value="2" TValue="int?" />
            <RadzenRadioButtonListItem Text="Customers" Value="3" TValue="int?" />
        </Items>
    </RadzenRadioButtonList>
</div>

@code {
    int? value;
}