public MainViewModel(WizardShell mainWindow, BaseStyleValuesProvider provider)
     : base(mainWindow, provider, NewItemSteps, false)
 {
     Instance                   = this;
     Navigation.OnFinish       += OnFinish;
     Navigation.OnStepUpdated  += OnStepUpdated;
     Navigation.IsStepAvailable = IsStepAvailableAsync;
 }
 public MainViewModel(WizardShell mainWindow)
     : base(mainWindow, false)
 {
     Instance = this;
 }
 public MainViewModel(WizardShell mainWindow, BaseStyleValuesProvider provider)
     : base(mainWindow, provider, false)
 {
     Instance = this;
 }