[Parameter]
public override TValue Value { get; set; }

<div role="radiogroup">
    @foreach(var priorityLevel in PriorityLevels) {
        <DxRadio GroupName="priorities-radio-group"
                 @bind-GroupValue="@SelectedPriorityLevel"
                 Value="@priorityLevel">
            @priorityLevel
        </DxRadio>
    }
</div>

@code {
    string SelectedPriorityLevel { get; set; } = "normal";
    IEnumerable<string> PriorityLevels = new[] { "low", "normal", "urgent", "high" };
}