/// <summary>
/// Execute the assigned <see cref="T:CarWash.Models.Interfaces.ICarWashProgram"/> instance.
/// </summary>
public void Execute()
{
this._washHandler.WashProgram.Execute();
this._washHandler = null;
}
/// <summary>
/// Cancel the current <see cref="T:CarWash.Models.Interfaces.ICarWashProgram"/> execution.
/// </summary>
public void Cancel()
{
this._washHandler.WashProgram.Cancel();
this._washHandler = null;
}
