/// <summary>
 /// Initializes a new instance of the <see cref="PivotItemViewModelBase"/> class.
 /// </summary>
 /// <param name="viewModelWorker">The vm worker.</param>
 public PivotItemViewModelBase(ViewModelWorker viewModelWorker)
 {
     this.VMWorker = viewModelWorker;
 }
 /// <summary>
 /// Initializes a new instance of the ScreenPageViewModelBase class
 /// </summary>
 /// <param name="viewModelWorker">Incoming ViewModelWorker provided by Caliburn.Micro</param>
 public ScreenPageViewModelBase(ViewModelWorker viewModelWorker)
 {
     this.viewModelWorker = viewModelWorker;
 }