public async static Task DisplayInformationMessage(string message, string dialogIdentifier)
 {
     var informationView = new Dialogs.InformationMessageDialog(message);
     await DialogHost.Show(informationView, dialogIdentifier);
 }
 public async static Task DisplayInformationMessage(string message)
 {
     var informationView = new Dialogs.InformationMessageDialog(message);
     await DialogHost.Show(informationView, "RootDialog");
 }