private void Create_Click(object sender, RoutedEventArgs e) { if (!CurrentUser.isAuthorized) { NavigationServices.NavigateToPage("LoginPage"); } else if (DescriptionBox.Text != "") { ErrorText.Text = "Событие создано"; ServerAPI.AddEvent(DescriptionBox.Text, geoposition, EventDateTime); NavigationServices.NavigateToPage("MainPage"); } }