private void noticeBtn_Click(object sender, RoutedEventArgs e)
        {
            SMSUI.Notice Noticeobj = new SMSUI.Notice();

            mainUniGrid.Children.Clear();
            mainUniGrid.Children.Add(Noticeobj);
        }
        private void noticeBtn_Click(object sender, RoutedEventArgs e)
        {
            SMSUI.Notice Noticeobj = new SMSUI.Notice();

            mainUniGrid.Children.Clear();
            mainUniGrid.Children.Add(Noticeobj);
        }