private void button2_Click(object sender, RoutedEventArgs e)
{
App app = Application.Current as App;
string ID = app.ID;
//sc.FindChatByUID(ID);
foreach (Chat s in sc.FindChatByUID(ID))
{
listBox1.Items.Add(s.Comment);
}
listBox1.Visibility = Visibility.Visible;
}
