sharee.bike-App/SharedGui/ViewModel/Bar.cs

using System;
using System.Collections.Generic;
using System.Text;

namespace SharedGui.ViewModel
{
	public enum ChargingState
	{
		Loaded,
		Empty
	}

	public class Bar
	{
		public Bar(ChargingState? state = null)
		{
			State = state;
		}

		/// <summary>
		/// Gets a value indicating whether bar is charged or not. Null if state is unknown.
		/// </summary>
		public ChargingState? State { get; private set; } = null;

		public string Text
		{
			get
			{
				if (State == null)
					return string.Empty;

				return State == ChargingState.Loaded ? " +  " : " - ";
			}

		}
	}
}