private void ExecuteBackCommand(Object parameter)
{
var teacherStartView = new TeacherStartView();
var vm = new TeacherStartViewModel();
vm.LoadData();
teacherStartView.DataContext = vm;
NavigationHelper.NavigateTo(teacherStartView);
}
private void ExecuteBackCommand(Object parameter)
{
var startView = new TeacherStartView();
var startViewModel = new TeacherStartViewModel();
startViewModel.LoadData();
startView.DataContext = startViewModel;
NavigationHelper.NavigateTo(startView);
}