private void Register_Pin(object sender, PinnedEventArgs e)
 {
     if (e.Pinned)
     {
         pinned[e.TagValue] = true;
     }
     else
     {
         pinned[e.TagValue] = false;
     }
 }
 private void Register_Pin(object sender, PinnedEventArgs e)
 {
     if (e.Pinned)
     {
         pinned[e.TagValue] = true;
     }
     else
     {
         pinned[e.TagValue] = false;
     }
 }