ILaunchActivatedEventArgs.TileId Property

Definition

Namespace:

Windows.ApplicationModel.Activation

Gets the ID of the tile that was invoked to launch the app.

public:
 property Platform::String ^ TileId { Platform::String ^ get(); };

winrt::hstring TileId();

public string TileId { get; }

var string = iLaunchActivatedEventArgs.tileId;

Public ReadOnly Property TileId As String

Property Value

String

Platform::String

winrt::hstring

The ID of the tile that launched the app. If the app's main tile was used, this value is "App". If a secondary tile is used, the SecondaryTile.TileId value, assigned to the secondary tile when it was created, is returned.

Remarks

Starting with Windows 10, TileId behavior is different for apps that are launched after having been terminated. Previously, the TileId always returned the ID of the tile that launched the app. The TileId behavior now depends on how the app is reactivated:

How the app is reactivated	Behavior of TileId
The user switches to the app by using the task switcher or by using the global back key	Returns the empty string ("").
The user taps the app tile	Returns the tile ID.

The new behavior makes it possible to differentiate between a switch to the app versus a re-launch of the app. If your app uses tile ID information during activation, handle the TileId=="" case. For example:

protected override void OnLaunched(LaunchActivatedEventArgs e)
{
...
  if (e.TileId == "")
  {
    // resumed from switch/backstack
  }
  else
  {
    // resumed from tile launch
  }
...
}