WPF.NumericInput

xmlns:ni="http://hotko.org/wpf/controls/numericinput"

<ni:NumericInputInteger Name="Edit_PodiumStairCount" Minimum="0" Maximum="40" TextAlignment="Right" VerticalAlignment="Center" HorizontalAlignment="Stretch" Margin="2" Grid.Column="2" Grid.Row="3" />

_result.PodiumStairsCount = Edit_PodiumStairCount.Value??0;