/// <summary>
///
/// </summary>
/// <param name="homeView"></param>
void INavigator.AddHomeView(WorkspaceViewModelBase homeView)
{
_homeView = homeView;
}
/// <summary>
///
/// </summary>
/// <param name="workspaceView"></param>
void INavigator.AddView(WorkspaceViewModelBase workspaceView)
{
if (null == workspaceView)
throw new ArgumentNullException("workspaceView");
_views.Add(workspaceView.RegisteredName, workspaceView);
}