Windows Phone 7 - Push Tile Notification: Clear pushed tile?

Thanks to many of you, I've finally gotten a handle on how to push Toast and Title notifications. Now that I have an updated Title pushed to the phone, how do I clear it?

I see that there is a .UnbindToShellTile();

Right now that is causing an exception, but I 开发者_开发问答might not be putting it in the correct place.

Thanks.

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You can raise a tile notification with the image you want to return to and pass the count as 0 to clear that if you sent one.

From Types of Push Notifications for Windows Phone

"The background image will never revert to a previous version after it has been successfully updated, unless a previous background image is sent again with a push notification."

and

"if a Count value is already displayed in the Tile, you must send a value of 0 to clear the Count image and value from the Tile."

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Waht did work for me on the phone (Mango) for clearing the counter:

    var appTile = ShellTile.ActiveTiles.FirstOrDefault();
    if (appTile == null) return; //Don't create...just update

    appTile.Update(new StandardTileData(){BackTitle = "", BackContent="", Count=0});