<div class="rz-p-12 rz-text-align-center">
    <RadzenCheckBoxList @bind-Value=@values TValue="int">
        <Items>
            <RadzenCheckBoxListItem Text="Orders" Value="1" />
            <RadzenCheckBoxListItem Text="Employees" Value="2" />
            <RadzenCheckBoxListItem Text="Customers" Value="3" />
        </Items>
    </RadzenCheckBoxList>
</div>

@code {
    IEnumerable<int> values = new int[] { 1 };
}