<RadzenStack Orientation="Orientation.Horizontal" JustifyContent="JustifyContent.SpaceAround">
    <RadzenSlider @bind-Value=@value TValue="int" Orientation="Orientation.Vertical" />
    <RadzenSlider Range="true" @bind-Value=@values TValue="IEnumerable<int>" Orientation="Orientation.Vertical" />
</RadzenStack>

@code {
    int value = 33;
    IEnumerable<int> values = new int[] { 14, 78 };
}