private void sendFeedback_Click(object sender, RoutedEventArgs e)
 {
     if (selectedDay.SelectedDate != null)
     {
         SQLQuery mSQLQuery = new SQLQuery();
         mSQLQuery.insertDailyChildDetails(selectedDay.SelectedDate.Value, dailyDetailsContent.Text, (int)GlobalVariables.globalChild.id);
     }
 }