How to deep-link a tile with a variable query string? - windows-phone-8

Question

I created my tile as follows in the hopes that panelId={0} could be resolved at runtime, when I send the tile notification to the phone.
StandardTileData NewTileData = new StandardTileData
{
BackgroundImage = new Uri("tile_medium.png", UriKind.Relative),
};
ShellTile.Create(new Uri("MainPage.xaml?Name=MyTile&panelId={0}", UriKind.Relative), NewTileData);
Then I send the following notification:
<?xml version="1.0" encoding="utf-8"?>
<wp:Notification xmlns:wp="WPNotification">
<wp:Tile Id="/MainPage.xaml?Name=MyTile&panelId=106398738">
<wp:BackgroundImage>alarm.png</wp:BackgroundImage>
<wp:Count>72</wp:Count>
<wp:Title>My Title</wp:Title>
<wp:BackContent>Text of the tile</wp:BackContent>
</wp:Tile>
</wp:Notification>
I wanted panelId={0} to be resolved to panelId=106398738 but this doesn't seem to happen. Even though the server confirms that the notification was received, the phone never updates the tile.
I've also tried adding <wp:Param> to the query string as follows, but this didn't work either:
<wp:Param>/MainPage.xaml?Name=MyTile&panelId=106398738"</wp:Param>
Is it possible to deep-link a tile with a variable query string? If so, how?

Answer 1

I would recommend using following snippet:
protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (e.NavigationMode == NavigationMode.New)
{
string textValue;
int value;
if (NavigationContext.QueryString.TryGetValue("panelId", out textValue))
{
if (int.TryParse(textValue, out value))
{
// got it!
}
}
}
base.OnNavigatedTo(e);
}